Researcher: deep waters of inquiry

The standard map service that lets you cut across maps, routes, Street View, and reviews worldwide. With Gemini AI–powered "Ask Maps" you can do natural conversational searches, and the 3D immersive navigation lets you confirm a route with on-site feel. A starting point for places, facilities, and traffic — usable at any age.

Layer topographic maps, aerial photos, elevation, and disaster information to read the "why of place".

An entry into "how society of the time was seen" through film and video sources. Easy to use as inquiry material.

Read damage, reconstruction, and urban change with the documentary footage of the Great Kanto Earthquake as material.

Understand Japanese and world history with people at the center.

The Smithsonian — one of the world's largest museum complexes — publishes its images, 3D models, and audio under CC0 Open Access. Young readers and researchers alike can reach world-class primary materials through the same door.

The Met's official Open Access collection, releasing out-of-copyright works under CC0. High-resolution images can be used without permission, making it a shared entry point for children through researchers to handle real art objects.

The University of Tokyo's OpenCourseWare publishing actual course materials and videos. University students, graduate students, and teachers can use it as a reference model for how research-grade arguments are built.

An official channel that teaches the perspective of excavation and cultural property research.

Observe cultural properties in 3D. Good practice for forming hypotheses about form, use, and making.

Browse cultural properties and ruins nationwide overlaid on a map. Use the relationship between place and era to form questions.

Search by place name and the "layers of regional culture" become visible.

Observation data of temperature, precipitation, etc. For analyzing climate change and torrential rains.

When you can see clouds moving, weather and torrential-rain inquiry becomes concrete.

The UK's official weather and climate agency. Publishes historical observations, climate research, and reanalysis data. Paired with JMA (Japan), lets you read differences between North Atlantic climate and Japan's monsoon climate.

The English portal of Germany's federal meteorological service. Observations, climate data, and warnings. An official reference for continental European climate, useful for climate comparison with Japan.

Korea's official meteorological agency (English portal). Publishes observations, forecasts, and climate data. As a neighbour across the Yellow Sea and Sea of Japan, one of the easiest meteorological datasets to compare with Japan.

Generate climate charts by clicking on a world map. Walter-Lieth diagram available.

High-resolution global weather and climate database.

NOAA's climate maps and visualization tools.

Satellite data archive and downloads from NICT's Himawari project.

A geographic browser to fly around the entire planet in 3D. Visually grasp "the world now and then" through satellite imagery, terrain, 3D buildings, and Timelapse (year-by-year change of satellite photos). The "Voyager" feature also hosts 3D tours of World Heritage sites and stories on endangered species and the SDGs. An entry to geography, history, disaster prevention, and international comparison — usable at any age.

Confirm nationwide disaster risks (flood, landslide, storm surge, tsunami, etc.) from MLIT via the "Layered Hazard Map" and "My Town Hazard Map". An entry for local disaster prevention and geography inquiry.

GIS data of administrative borders, transport, facilities, etc. Usable for mapping and analysis.

An entry to understanding seismic risk "with assumptions explicit".

Treats transaction prices, land prices, hazards, and city planning on the same map.

A pathway for how to use satellite data.

Browse Japan's geological maps seamlessly. Explain terrain, disasters, and resources from "differences in geology".

A navigation hub to GSJ database groups on geology, terrain, and resources. Strong as a path to drop down to primary data.

A historical map DB that lets you cross-search early-modern to modern maps. Read the change of place names, territories, transport routes, etc. as primary sources.

Overlay Edo, Meiji, and prewar old maps semi-transparently on modern maps. Visually read changes in place names, waterways, and roads. An entry to historical geography, usable from elementary to professional.

A site (independently run) that, with operations similar to the GSI Map, lets you overlay red-relief maps, contour lines, individually tiled old topographic maps, and detailed terrain maps. Supports two-pane display, measurement, drawing, and printing — works from middle-school regional / disaster-prevention / high school geography to university research and field surveys.

Japan's official source for seafloor topography, tides, ocean currents, territorial seas, and 3D marine maps. A primary information source for reading the links between landform, safety, fisheries, and the marine environment.

An official database that lets you pull borehole survey logs (columnar sections) by location, published by Japanese public-infrastructure bodies. You can see, as a primary source, which layers underlie your own town.

An international portal that cross-searches historical maps held by libraries and archives worldwide, from a geographic location. Complements David Rumsey for reading the same place across multiple period maps.

The official global bathymetric dataset jointly maintained by IHO and the IOC of UNESCO. The standard reference for "submarine topography" counterpart to the GSI Map, usable as the marine side of Create GBM's 3D terrain.

The UK's official mapping agency and one of the origins of modern cartographic surveying. Publishes precise topographic maps, administrative boundaries, and digital mapping. A strong comparison point for how "national maps" are made against GSI (Japan).

The UK's national geological survey. Publishes geological maps, subsurface, earthquake, and environmental-geology data. Paired with GSJ (Japan), gives an international lens on "reading the land through geology".

The official web map operated by France's national mapping agency (IGN). Layer topography, aerial photos, boundaries, and historical maps for all of France in the browser — a French counterpart to the GSI Map.

Australia's national geoscience and surveying agency. Provides comprehensive maps, landform, geology, and natural-hazard data. A Southern Hemisphere / continental-scale reference point for terrain inquiry.

New Zealand's official geo-information agency. Open topographic maps, aerial photos, cadastre, nautical charts, and place-name data. As an island nation on a plate boundary, comparable to Japan in geography.

The English portal of Germany's federal mapping and geodesy agency (BKG). Publishes national terrain, boundary, and administrative data. A model case for a continental European map-data system.

The official data hub of the EU / ESA Earth observation programme Copernicus. Sentinel optical and radar observations are available for free. The international standard for high-resolution satellite imagery inquiry on land use, disasters, and agriculture.

A planet-scale satellite-data analysis platform Google provides free for research, education, and non-profits. Landsat, Sentinel, and MODIS can all be analysed in the cloud. Since it is privately operated, confirm terms of use before applying it.

A global database of human settlement (cities / population / buildings) maintained by the European Commission's Joint Research Centre. Combining satellite and statistics, it allows worldwide time-series comparison of urbanisation.

A high-resolution global population distribution dataset published by the WorldPop international project centred on the University of Southampton. Integrates censuses and satellite observations to compare small-area populations globally. Widely used for disaster, health, and education policy research.

An international-standard dataset of administrative boundaries down to city / municipality level. Freely available as base layers for overlaying statistics in GIS. For commercial use, confirm the licence separately.

A public digital archive at Stanford University Libraries holding over 150,000 historical maps of the world, 15th century to present, at high resolution. Even young learners can enjoy "how people used to picture the world" as images.

The national portal for distributing geospatial data from government and research institutions.

Download geological maps and data from the Geological Survey of Japan (AIST).

National database of active fault evaluations by Japan's Headquarters for Earthquake Research Promotion.

AIST's comprehensive active fault database with GIS data and evaluation reports.

National database of hydrological and water quality data from rivers and lakes across Japan.

Aerial photos from the 1950s onward, freely viewable and downloadable at 400 dpi.

Cross-search government statistics. The first stop for "numerical evidence" in your inquiry report.

An entry to the background and disclosures of base statistics such as the National Census.

Visualizes population, industry, tourism, and more by prefecture / municipality with maps and graphs. Strong for forming "why?" questions about regional differences.

A catalog to find ministerial open data at the "dataset level".

Cross-search and visualize MLIT-related data.

Money, prices, foreign exchange, and flow of funds — core numbers for the Japanese economy, published officially by Japan's central bank with time-series search and an API. Sound evidence for tracing long-run change.

Japan's official figures on energy supply and demand, published as primary information. Covers renewables, fossil fuels, electricity, and consumption — indispensable evidence for climate and energy-policy inquiry.

Official numerical readings on Japan's environment — air, water, greenhouse gases, and chemical substances — published as a primary source. Operated by the National Institute for Environmental Studies (NIES) for research and education use.

The Cabinet Office think tank that officially publishes Japan's quarterly GDP, leading indicators, and the Annual Report on the Japanese Economy. Lets you verify the primary source behind policy discussions and serves as a starting point for policy-economy inquiry.

Japan's window for GBIF, the international framework for sharing biodiversity information. Publishes distribution and specimen data from Japanese museums and research institutions globally. Connects local nature observation to the same-species data worldwide.

The national institute that officially publishes surveillance of infectious diseases, pathogen information, and outbreak predictions. A primary source for treating infectious diseases as "a social phenomenon checkable with data" rather than emotion.

The Japanese national research institute that publishes the official projections of future population, household structure, and social security. A primary reference when discussing aging, low fertility, or regional demographic change.

An official dashboard jointly built by the Cabinet Office, the Digital Agency, and the Cabinet Secretariat that exposes about 1,000 indicators at the prefecture and municipality level. Indicators span population, economy, social security, education, living, social infrastructure, and local public finance — and can be viewed on a map, compared across regions, plotted as two-indicator relationships, or trended against four indicators side by side. Functions as a single entry point to Japan's regional differences that pairs well with e-Stat and RESAS.

Old maps, classics, books, magazines. Direct access to primary sources.

A national integrated platform, with the National Diet Library at its core, that cross-searches digital materials of museums, libraries, archives, and universities. Themed "Galleries" are also rich.

For materials not in the Digital Collections, search "holdings" and head to a library.

A "how to research" guide by theme from the NDL. Bibliographies, field-specific guides, and reference lists are abundant — usable as a starting point for teachers researching materials for inquiry lessons.

Browse Japan's public records as primary sources. A basis for institutional and political history.

Modern records of Japan and Asian relations. The catalog is powerful.

Full-text search of newspaper articles from Meiji to early Showa. Trace public opinion, events, and social conditions in modern history.

An official archive that traces the history of broadcasting. From programs, chronologies, and themes, build an entry to background understanding and primary sources (footage).

Footage that recorded society of the time as a primary source. Read it including the perspective of reporting (what is shown, what is not).

An entry to primary sources (public records) on the administration, policy, and urban formation of Tokyo. Trace modern municipal/social/economic change with evidence.

Cross-search excavation reports and reach the primary source (the report) that provides the evidence.

Ideal for practicing reading images as primary sources.

Japan's sole national film institution, preserving domestic films and newsreels. Its official search makes the holdings available as a primary source for reading the "way society was seen" at the time of production.

A cross-disciplinary database suite from an Inter-University Research Institute dedicated to Japanese history and folklore. Folklore, archaeology, old documents, and modern history are all searchable — use it together with integrated-resource-studies (khirin) for maximum depth.

The official cross-search portal centred on the National Museum of Japanese History, covering university, museum, and municipal historical resources. IIIF-enabled image comparison, combined with the Rekihaku DBs, makes it a core entry point for Japanese history research.

The Imperial Household Agency's official archive holding imperial and agency documents, gyobutsu (imperial treasures), and premodern records. A starting point for tracing the primary sources of the modern imperial institution and court rituals.

The current entry point integrating databases such as the New Database of Pre-Modern Japanese Works, run by the National Institute of Japanese Literature. High-resolution images of manuscripts, printed books, and illustrated books — a shared base for classical Japanese literature and historical research.

A public archive aggregating women's history, gender policy, and related statistics. Lets you search primary sources, policy papers, and statistics in one place — essential entry point for gender and family-history inquiry.

A public archive holding records of Okinawa from the Ryūkyū Kingdom through the US administration and post-reversion periods. Easy to pair with US NARA holdings on Japan, making it a strong primary-source entry point for modern Okinawan history.

A prefectural archive that comprehensively handles Kyoto's old documents, historical maps, administrative records, and publications. A "place-rooted primary-source" starting point for regional history and cultural-heritage research.

A large-scale repository of the National Archives of Japan for modern public records. Alongside the Tokyo main branch, an essential archive for modern Japanese political and administrative history, used mostly by universities and researchers.

The Ministry of Defense's official research institute preserving former Army / Navy war records and publishing contemporary security studies. With JACAR, lets you reach primary sources of military and war history.

The U.S. national archives. Publishes over 200 million digitised pages, including not only U.S. primary records but also documents on Occupation-era Japan and the U.S. military — vital for Japanese history research. Use the dedicated catalogue to search.

Germany's federal archives. Holds federal-level records from the Imperial, Weimar, Nazi, East / West German, and contemporary periods. Essential primary-source entry for 20th-century German and international-relations history.

The national archives of France. Holds central-government records from the Ancien Régime through the Republic and modern period; invaluable for French Revolution, colonial, and diplomatic-history primary sources.

The official directory of world national archives maintained by the National Archives of Japan. Cross-trace counterparts by country / region — a hub for international comparison and multilateral history research.

The national library of the UK. Holds a world-class collection including manuscripts, maps, and codices, and publishes many digitised materials. Strong as a primary-source entry point for world history, cartographic history, and bibliography.

The Vatican Apostolic Library's digital manuscripts and rare books. Medieval European, Byzantine, and Asian-related materials are viewable in high resolution — first-rate primary sources worldwide.

A public cross-search portal centred on the National Library of Australia, covering AU / NZ records, newspapers, images, and maps. Rich in colonial, Pacific-War, and Indigenous-related primary sources.

Run by the National Library of New Zealand, this portal cross-searches cultural materials from NZ museums, archives, and libraries. Also handles Māori culture, settler history, and war-related materials.

Korea's National Central Library. Digitisation of primary sources on modern Korean and Joseon history is advancing, with many Japanese-language materials as well. Essential for bidirectional inquiry into Japan–Korea relations.

A shared digital library run by U.S. research-library consortia. Makes public a vast body of full-text-searchable digital materials, mostly out-of-copyright books. A standard base for researchers worldwide to cross-reference primary and secondary sources.

A pioneering project that digitises and freely publishes out-of-copyright books worldwide. Over 70,000 classics and landmark works available in full text. Useful for confirming originals when using scholarly translations.

A meta-link list covering all of Japan's prefectural and municipal archives, records offices, and historical-materials repositories. The shortest path to your own region's archive.

Cross-search of four national museums, two research institutes, and Sannomaru Shozokan.

Image search of artifacts held at the Tokyo National Museum.

Comprehensive database of Japan's intangible cultural properties from the Tokyo National Research Institute.

Local history digital platform covering 188 institutions, 1.11 million catalog records, and 300,000 content items.

300 maps showing geographic distribution of dialects, published as PDFs.

300 maps showing the geographic distribution of grammatical features in Japanese dialects, as PDFs.

CODH's GIS map linking historical place names to modern geography.

Historical place name dataset from the National Institutes for the Humanities.

Integrated search across historical place name datasets using the GeoShape spatial data repository.

Scholarly databases from the University of Tokyo's Historiographical Institute — the core of Japanese historical research.

Japanese historical terminology with English translations, compiled by UTokyo's Historiographical Institute.

The largest library in the world — primary sources, digital collections, and research guides.

Cross-search digital collections from US libraries, archives, and museums in one portal.

Germany's national digital library portal cross-searching cultural and scientific heritage institutions.

Classical works including The Tale of Genji, Essays in Idleness, and Tales of Ise, released for elementary–high school education.

Comprehensive database of classical Japanese texts from Waseda University Library.

Search the collection of the Kyoto National Museum online.

25 audio recordings in Saru Ainu dialect by speaker Ueda Toshi, with PDFs, MP3s, and picture books.

Confirm laws and ordinances as primary information. Effective dates and revision history are crucial.

Trace "who said what, on what basis".

Primary source for "when and what was officially announced" in Japan — notifications and public notices. Since April 2025 the electronic edition is the authentic, official version; recent issues are freely readable online.

From solicitation of opinions → results → laws and notifications. Trace the flow of policy formation.

Trace points of contention and reasoning.

Japan's official archive preserving diplomatic records and treaty originals from the Meiji era onwards. A primary source you can go to directly, for the evidence behind modern international relations, security, and treaties.

The official database maintained by the United Nations for multilateral treaties and bilateral agreements. Adoption date, entry into force, and full state-party lists are available as primary information for international law. Mostly English, but navigable through treaty names and state-party tables.

The unified official portal to search EU law, treaties, and case law. Lets you trace how EU regulations and directives correspond to member-state domestic law — a starting point for comparative legal-system inquiry.

WIPO's official database that cross-searches national IP laws and international treaties. A primary source for international comparison of copyright, patent, and trademark.

The UN's principal judicial organ. Publishes judgments, advisory opinions, and filings in their original texts. Lets you read the intersection of inter-state disputes and international law in primary-source form.

The official database of the UN treaty bodies monitoring implementation of human rights treaties. Cross-search state reports, committee observations, and individual-communication decisions by treaty and country.

The National Diet Library's index to historical and current Japanese laws and ordinances.

Database of historical Japanese laws compiled by Nagoya University — for tracing legal change over time.

Build a "trail" from abstracts, keywords, and references.

Useful for academic verification. Cross-disciplinary.

Learn the ideas of digitizing sources and metadata.

High-quality issue summaries. From here, drop down to primaries.

A world-standard open-access preprint server for physics, mathematics, and computer science, where researchers post their latest papers directly. Operated by Cornell University, with free full-text access.

The world's largest literature-search system for medicine and life sciences, run by the U.S. National Library of Medicine (NLM), part of the National Institutes of Health (NIH). Over 30 million records, freely searchable.

An international repository operated by CERN (the European Organization for Nuclear Research), offering free preservation and sharing of research data, papers, and software — with DOIs automatically minted so the records are citable.

A non-profit, curated whitelist of peer-reviewed open-access journals from around the world. A reliable starting point that lets you avoid predatory journals when searching open-access literature.

A national research institute under MIC publishing research outcomes and official data on radio propagation, space weather, multilingual information, and cybersecurity. The space-weather forecast pages are also useful for earth-science inquiry.

RIKEN, Japan's comprehensive science research institute, publishes research outcomes, press explanations, and open data. Lets you follow the frontiers of basic science through primary materials and official videos.

A core institution of Japanese statistical science. Handles research and published data on the Study of the Japanese National Character, statistical learning, and data science. An official reference for how statistical inquiry is structured.

The core institution of Japanese-language research. Publishes official data on corpora, dialects, and linguistic atlases. A research base for Japanese-language and linguistic inquiry into vocabulary, grammar, and usage.

An independent administrative think tank under METI, publishing policy data, discussion papers, and statistical analyses. A first reference for policy and economic-history research.

Japan's official fisheries research agency, in charge of stock assessment, fishing-ground environment, and marine-biology surveys. Lets you read local fisheries and ecosystems as primary information from both ocean and food angles.

The life-science preprint server bioRxiv (run by Cold Spring Harbor Laboratory) and the medical preprint server medRxiv (BMJ / Yale / Cold Spring Harbor). The international standard for fastest access to pre-peer-review papers.

An international working-paper / preprint platform centred on social sciences (economics, law, policy, management). Lets you catch the global frontier of policy-oriented research early.

Run by the UK Open University, one of the world's largest open-access paper aggregators. Access to over 30 million full texts — lets you quickly find papers across disciplines with text available.

An international registry that assigns a unique ID to each researcher, linking works and outputs to the person unambiguously. Lets you follow a researcher's record across name changes and common names.

Over 230 million biodiversity observation records worldwide. Citizen science platform linked to GBIF.

Official academic society for geography in Japan — journals, research, and educational resources.

Official academic society for geology — journals, field guides, and educational content.

A starting point for international comparison. Confirm definitions → re-pull Japan's figures from e-Stat.

A representative source of national development indicators. Beware of missing values and estimates.

Stronger when you can also explain "why these comparison countries".

The more you can read assumptions (currency, base year, etc.), the stronger your analysis.

An entry to handle global-scale data.

The International Energy Agency (IEA) publishes official country-level data on energy supply and demand, the power mix, and CO2 emissions. A standard reference for comparing policies across developed economies, and strong evidence for climate and energy inquiry.

Official statistics run by the UN's Food and Agriculture Organization (FAO), covering global agricultural production, food security, land use, and forests. Commodity-by-commodity long-run time series let you compare food and farming across the world.

Official global data on health, disease, health workers, and infectious disease, published by the World Health Organization (WHO). Clearly mapped to SDG 3, making it the baseline for health- and medical-policy inquiry.

Official global statistics from the UN specialized agency ILO — labour, employment, wages, and gender. Lets you compare working conditions across developing and developed countries on a single platform.

Official trade statistics compiled by the UN Statistics Division from member-state governments, covering trade volumes and values by country, commodity, and partner. Lets you verify bilateral relationships and global-economic structure as numbers.

The consolidated scientific assessment reports on climate change by the IPCC, published together with the governments-approved "Summary for Policymakers". The most trusted international evidence for climate-change inquiry.

The official database run by the Federal Reserve Bank of St. Louis, visualizing more than 800,000 economic time series. Lets you compare U.S. and world economic indicators across decades on one interface.

Official international statistics on trade, investment, and maritime shipping published by UNCTAD, covering developing countries as well. Enables international comparison that includes the Global South, not just advanced economies.

The IAEA's official database of nuclear reactor operation, shutdown, and construction worldwide. Essential for international comparison of energy policy and nuclear safety.

The UN Refugee Agency's central database of official statistics on refugees, IDPs, and stateless persons worldwide. An international baseline for handling refugee issues with numbers rather than emotion.

The EU's official statistics office, publishing standard statistics with definitions aligned across member states. The standard entry point for intra-EU comparisons and for comparisons with the EU, covering economy, population, and environment.

Official statistics on international finance, FX, and credit published by the BIS, often called "the bank of central banks". Useful for visualising cross-border capital flows and financial imbalances.

Open data published by the ADB on economy, development, poverty, and climate in Asia-Pacific. A usable international-organisation dataset for comparisons across East / Southeast / South Asia.

The AfDB's official data portal on Africa's economy, population, infrastructure, and climate. A starting point for international comparison of African countries.

The official economic and social statistics database for Latin America and the Caribbean, published by ECLAC. Gives comprehensive coverage of data that is often missing when comparing Japan with LAC.

The U.S. federal statistical agency in charge of population and economic censuses. Publishes the decennial census, the American Community Survey (ACS), and business statistics. A reference point for comparison with Japan's population and economic censuses (MIC).

The UK's official statistics office, publishing the census, labour, prices, and GDP in one place. A model of European-standard statistics, usable as a comparison point for Japan.

The English / German portal of Germany's federal statistical office. Publishes official census, economic, population, and environmental data. Under the EU statistical system, consistent with Eurostat.

INSEE's English / French portal. Publishes the census, labour, prices, and regional statistics. In addition to EU standards, handles social indicators specific to the French community.

Italy's national statistical institute. Publishes official data on population, economy, and society. As a Southern European model case, it helps confirm diversity within Europe.

Canada's official statistical agency (English / French bilingual). Publishes statistics on population, economy, labour, and Indigenous matters. A federal and multicultural country's data — suggestive when compared to Japan.

Australia's official statistical agency. Publishes statistics on population, economy, society, and environment. As a Southern Hemisphere developed-country dataset, it helps read common ground and differences with Japan via geography and climate.

Korea's official statistical agency. With a well-maintained English portal, it is an easy neighbour to pair with Japan for population, economy, labour, and family comparisons.

Taiwan's official statistical agency. Publishes data on national income, labour, prices, and households. Usable for East-Asian comparison with Japan and Korea as official statistics.

China's official statistical agency. The English edition publishes major macro indicators. A starting point for referencing the dynamics of a very large economy in primary form.

A directory maintained officially by Japan's Statistics Bureau (MIC) linking to statistical agencies in countries around the world. Works as a comprehensive hub for navigating national statistical offices in international-comparison inquiry.

An international public platform integrating over 2.3 billion species-distribution and specimen records provided by museums and research institutions worldwide. Used alongside the Japan node (JBIF), it lets you verify species distributions on a global scale.

The official Red List of threatened species worldwide, run by the International Union for Conservation of Nature (IUCN). Centralises assessment categories, distributions, and threat factors per species — the international standard for conservation inquiry.

A series of short training videos produced by the National Institute for School Teachers and Staff Development (NITS) for use in in-school training. Specialists explain class management, lesson design, and student guidance. New teachers can use them for self-study; experienced teachers use them as material for school-based professional development.

The Special Needs Education portal of the Ministry of Education. The official primary source that gathers the system, policy, handbooks, and practice cases. A set of resources that lets new teachers cover everything from classroom accommodations to individual instruction plans in one place — directly tied to daily practice.

Primary information containing the Courses of Study for elementary, middle, and high schools together with the official "commentaries". The essential resource for experienced teachers who want to re-read the big directions of instruction.

The national educational research institute aggregating research outcomes and practical materials on curriculum, instruction, and assessment. New teachers learn from the practice case collections; experienced teachers use evaluation criteria and reports to situate their own teaching academically.

The Ministry of Education's official explanation of how textbooks are produced and selected in Japan. Read authorization criteria, the adoption system, and research surveys as primary sources. A resource for experienced teachers to re-situate "the textbook I use now" from the standpoint of the system.

Official questions, commentary, and analysis reports from Japan's national academic assessment. Experienced teachers can benchmark where students stumble against nationwide data and refine their own instruction.

A cross-searchable metadata database of educational research maintained by NIER — practice research, teaching materials, and survey reports. Useful for experienced teachers who want to rebuild instruction on top of prior knowledge.

A textbook-aligned ICT teaching-materials library jointly operated by Yamakawa Shuppansha (Japanese history / world history) and Ninomiya Shoten (geography). Videos, slides, worksheets, and statistical materials are organised by subject and unit — a go-to teaching hub for social-studies teachers who need to quickly supply "the one extra resource" a daily lesson is missing.

A group of free teacher-facing educational journals from Teikoku-Shoin delivering lesson-research examples, latest scholarship, and practice reports across geography, history, and civics. The family includes the education magazine "Kizahashi", the elementary-school "Children and Maps", the junior-high "Shakaika no Shiori", and the high-school "ChiReKo" — particularly strong support for geography teachers' materials research.

The Library of Congress's teacher-facing page on using primary sources. Publishes primary materials for history, social studies, and literature together with questioning examples and lesson procedures. Useful both as source material for new teachers and as a reference model for experienced teachers designing inquiry-based lessons.