{"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.4.MD.A.3","label":"area, perimeter, formulas; calculate, solve, interpret.","public_slug":"curratom-us-ccss-4-md-a-3","route":"/math/standards/us-ccss/curratom-us-ccss-4-md-a-3","data_json_route":"/math/data/standards/us-ccss/curratom-us-ccss-4-md-a-3.json","data_markdown_route":"/math/data/standards/us-ccss/curratom-us-ccss-4-md-a-3.md","skill_count":2,"skills":[{"title":"Area Rectangles Array","route":"/math/skills/measure/area-rectangles-array","family_name":"Geometric Measurement","standards":[]},{"title":"Perimeter Rectangles","route":"/math/skills/measure/perimeter-rectangles","family_name":"Geometric Measurement","standards":[]}],"crawler_summary":"CCSS.4.MD.A.3 maps to 2 math skills."}}