{"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.3.MD.D.8","label":"perimeter, polygons, measurement problems; solve, calculate, compare.","public_slug":"curratom-us-ccss-3-md-d-8","route":"/math/standards/us-ccss/curratom-us-ccss-3-md-d-8","data_json_route":"/math/data/standards/us-ccss/curratom-us-ccss-3-md-d-8.json","data_markdown_route":"/math/data/standards/us-ccss/curratom-us-ccss-3-md-d-8.md","skill_count":3,"skills":[{"title":"Polygons Classify","route":"/math/skills/geom/polygons-classify","family_name":"Geometry Shape Attributes and Classification","standards":[]},{"title":"Length Compare Direct","route":"/math/skills/measure/length-compare-direct","family_name":"Measurement Units, Tools, Time, and Money","standards":[]},{"title":"Perimeter Count Units","route":"/math/skills/measure/perimeter-count-units","family_name":"Geometric Measurement","standards":[]}],"crawler_summary":"CCSS.3.MD.D.8 maps to 3 math skills."}}