{"system":{"system_id":"us_ccss","public_slug":"us-ccss","label":"US Common Core Math","official_source_urls":["https://thecorestandards.org/Math/","https://thecorestandards.org/standards-in-your-state/"]},"standard":{"system_id":"us_ccss","system_slug":"us-ccss","system_label":"US Common Core Math","code":"CCSS.2.OA.A.1","label":"addition, subtraction, word problems, unknowns; solve, model, represent.","public_slug":"curratom-us-ccss-2-oa-a-1","route":"/math/standards/us-ccss/curratom-us-ccss-2-oa-a-1","data_json_route":"/math/data/standards/us-ccss/curratom-us-ccss-2-oa-a-1.json","data_markdown_route":"/math/data/standards/us-ccss/curratom-us-ccss-2-oa-a-1.md","skill_count":4,"skills":[{"title":"Add Sub Word Problems One Step","route":"/math/skills/oa/add-sub-word-problems-one-step","family_name":"Operations Models, Bar Models, and Word Problems","standards":[]},{"title":"Add Sub Word Problems Two Step","route":"/math/skills/oa/add-sub-word-problems-two-step","family_name":"Operations Models, Bar Models, and Word Problems","standards":[]},{"title":"Equations Unknown Add Sub","route":"/math/skills/oa/equations-unknown-add-sub","family_name":"Equations, Variables, Expressions, and Inequalities","standards":[]},{"title":"Variable As Unknown","route":"/math/skills/prealg/variable-as-unknown","family_name":"Equations, Variables, Expressions, and Inequalities","standards":[]}],"crawler_summary":"CCSS.2.OA.A.1 maps to 4 math skills."}}