{"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.MD.A.4","label":"length difference, measurement comparison; measure, compare, calculate.","public_slug":"curratom-us-ccss-2-md-a-4","route":"/math/standards/us-ccss/curratom-us-ccss-2-md-a-4","data_json_route":"/math/data/standards/us-ccss/curratom-us-ccss-2-md-a-4.json","data_markdown_route":"/math/data/standards/us-ccss/curratom-us-ccss-2-md-a-4.md","skill_count":2,"skills":[{"title":"Length Compare Direct","route":"/math/skills/measure/length-compare-direct","family_name":"Measurement Units, Tools, Time, and Money","standards":[]},{"title":"Length Measure Ruler","route":"/math/skills/measure/length-measure-ruler","family_name":"Measurement Units, Tools, Time, and Money","standards":[]}],"crawler_summary":"CCSS.2.MD.A.4 maps to 2 math skills."}}