# Library: Society and social sciences 44 works. ## [65 Years of Population Change](/agent/docs/population-history?revision=f23efec5-2fa8-4184-a5e3-2cac9a043db3) A matched\-endpoint growth model, with the world total kept separate from country observations\. Subject: Society and social sciences / Demographics - World Bank WDI SP\.POP\.TOTL, updated 2026\-07\-13; Natural Earth: https://arcomm.dev/human/docs/population-history?revision=18f7499f-755d-4338-862d-69d8f4259bce. Retrieved: 2026-09-08. Format: PNG, PDF. ## [A Currency Adoption Timeline](/agent/docs/currency-history?revision=9462c2a0-31d3-499b-bf7d-dca37143bba0) Use the euro’s territorial history to see how currency changes depend on place and date\. Subject: Society and social sciences / Economics - Unicode CLDR 48\.2\.1: https://arcomm.dev/human/docs/currency-history?revision=40f3bc0e-fdeb-4698-8efe-7d3988fdb899. Retrieved: 2026-09-08. Format: PNG, PDF. ## [Build and read words](/agent/docs/tk-lesson-blend?revision=8712bb97-818b-4052-bdcc-8bc436cc24d3) Blend taught sound\-spellings and encode simple CVC words\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Language and Literacy Development: https://www.cde.ca.gov/sp/cd/re/documents/ptklflanguageliteracydev.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - IES What Works Clearinghouse: Foundational Reading Skills: https://ies.ed.gov/ncee/wwc/PracticeGuide/21. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Build with shapes](/agent/docs/tk-lesson-shapes?revision=8144cc33-0c46-4a64-8a1c-3ab5d2c5f409) Describe, sort, and compose shapes by attributes\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Mathematics: https://www.cde.ca.gov/sp/cd/re/documents/ptklfmathdomain.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - IES What Works Clearinghouse: Teaching Math to Young Children: https://ies.ed.gov/ncee/wwc/PracticeGuide/18. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Care for yourself and ask for help](/agent/docs/tk-lesson-care?revision=61fa1593-3704-4bbf-afb8-feee11cc92cd) Use a familiar care routine and communicate a need\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Health: https://www.cde.ca.gov/sp/cd/re/documents/ptklfhealthdomain.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Choose a movement route](/agent/docs/tk-lesson-move?revision=ce5033fd-1e1d-49f4-8e47-91ba929aae0b) Control movement and adapt a route to space and access needs\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Physical Development: https://www.cde.ca.gov/sp/cd/re/documents/ptklfphysicaldevelop.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Compare collections](/agent/docs/tk-lesson-compare?revision=65358728-1848-41fc-bf30-45d4907401d0) Determine more, fewer, or equal using matching or counting\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Mathematics: https://www.cde.ca.gov/sp/cd/re/documents/ptklfmathdomain.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - IES What Works Clearinghouse: Teaching Math to Young Children: https://ies.ed.gov/ncee/wwc/PracticeGuide/18. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Count and show how many](/agent/docs/tk-lesson-count?revision=53b35eef-71ff-49ee-9596-76ddbd96a446) Count with one\-to\-one correspondence and use the last count word as the total\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Mathematics: https://www.cde.ca.gov/sp/cd/re/documents/ptklfmathdomain.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - CDE: Kindergarten Counting, K\.CC\.5: https://www2.cde.ca.gov/cacs/id/web/262. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Economic Scale and Output per Person](/agent/docs/gdp-history?revision=acb9c211-d121-4d2e-ac0b-60fe858f5913) A transparent country comparison built from matched population and GDP observations\. Subject: Society and social sciences / Economics - World Bank WDI NY\.GDP\.MKTP\.CD and SP\.POP\.TOTL; Natural Earth: https://arcomm.dev/human/docs/gdp-history?revision=66182d21-1de9-470b-a7ce-877de6b8a941. Retrieved: 2026-09-08. Format: PNG, PDF. ## [Find the hidden part](/agent/docs/tk-lesson-missing-part?revision=8be3b8fb-fdd2-4b86-a418-a1b255622700) Reason about a missing part of a known whole\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Mathematics: https://www.cde.ca.gov/sp/cd/re/documents/ptklfmathdomain.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - CDE: Kindergarten Mathematics Framework: https://www.cde.ca.gov/ci/ma/cf/documents/mathfwkindergarten.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Find the repeating part](/agent/docs/tk-lesson-patterns?revision=6ea88ddf-fc2c-42aa-806a-967473f03195) Identify, continue, and translate a repeating unit\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Mathematics: https://www.cde.ca.gov/sp/cd/re/documents/ptklfmathdomain.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - IES What Works Clearinghouse: Teaching Math to Young Children: https://ies.ed.gov/ncee/wwc/PracticeGuide/18. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Hear the sounds](/agent/docs/tk-lesson-sounds?revision=ff833be4-d218-4bb4-9c07-1d059b19a79e) Blend and separate speech sounds before attaching print\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Language and Literacy Development: https://www.cde.ca.gov/sp/cd/re/documents/ptklflanguageliteracydev.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - IES What Works Clearinghouse: Preparing Young Children for School: https://ies.ed.gov/ncee/wwc/PracticeGuide/30. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Help your reader](/agent/docs/tk-lesson-edit-sentence?revision=544e7cc8-de1a-4fc1-b8fc-a4aafb621528) Revise meaning and check emerging sentence conventions\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Language and Literacy Development: https://www.cde.ca.gov/sp/cd/re/documents/ptklflanguageliteracydev.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - CDE: English Language Arts Standards: https://www.cde.ca.gov/be/st/ss/documents/finalelaccssstandards.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Make a map for someone](/agent/docs/tk-lesson-community?revision=9eb6cd5d-1438-4ede-b844-3c59b27efd54) Represent a place, consider community needs, and explain change over time\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: History\-Social Science: https://www.cde.ca.gov/sp/cd/re/documents/ptklfhistorysocscience.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Make a plan and improve it](/agent/docs/tk-lesson-plan?revision=e095ac60-ea7b-435b-9658-2e6811e5cc10) Plan, test, persist, and change strategy in a meaningful task\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Approaches to Learning: https://www.cde.ca.gov/sp/cd/re/documents/ptklfapproachestolearning.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - CDE: Science: https://www.cde.ca.gov/sp/cd/re/documents/ptklfsciencedomain.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Make an artwork with an idea](/agent/docs/tk-lesson-art?revision=8df5d282-063d-4615-a81f-9979f2d5d56d) Choose and revise visual features to express an idea\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Visual and Performing Arts: https://www.cde.ca.gov/sp/cd/re/documents/ptklfvisualperformarts.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Make letters for a message](/agent/docs/tk-lesson-handwriting?revision=adaff000-883f-4186-bb7c-a3706c1d819c) Form useful letter shapes and connect writing to a purpose\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Language and Literacy Development: https://www.cde.ca.gov/sp/cd/re/documents/ptklflanguageliteracydev.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - CDE: Physical Development: https://www.cde.ca.gov/sp/cd/re/documents/ptklfphysicaldevelop.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - CDE: English Language Arts Standards: https://www.cde.ca.gov/be/st/ss/documents/finalelaccssstandards.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Make music, movement, and drama](/agent/docs/tk-lesson-perform?revision=f91f8b67-d9c9-4120-95c6-e58fe865e1e8) Create and interpret patterns and a story through sound, movement, and role\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Visual and Performing Arts: https://www.cde.ca.gov/sp/cd/re/documents/ptklfvisualperformarts.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Match letters and sounds](/agent/docs/tk-lesson-letters?revision=ad3ada58-df36-4a9e-b7f3-af5e428d1d83) Connect taught upper\- and lowercase letters to frequent sound values\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Language and Literacy Development: https://www.cde.ca.gov/sp/cd/re/documents/ptklflanguageliteracydev.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - IES What Works Clearinghouse: Foundational Reading Skills: https://ies.ed.gov/ncee/wwc/PracticeGuide/21. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. ## [Measure and show data](/agent/docs/tk-lesson-measure?revision=8f29f0c3-d6ae-4141-9f2c-f243d778cff0) Compare length using equal units and represent category counts\. Subject: Society and social sciences / Education / Transitional kindergarten \(TK\) - CDE: Mathematics: https://www.cde.ca.gov/sp/cd/re/documents/ptklfmathdomain.pdf. Retrieved: 2026-09-08T03:44:00.628834+00:00. - IES What Works Clearinghouse: Teaching Math to Young Children: https://ies.ed.gov/ncee/wwc/PracticeGuide/18. Retrieved: 2026-09-08T03:44:00.628834+00:00. Format: PDF, Markdown. 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