{"system":{"system_id":"uk_england_nc","public_slug":"uk-england-nc","label":"England National Curriculum: Mathematics","official_source_urls":["https://www.gov.uk/government/publications/national-curriculum-in-england-mathematics-programmes-of-study/national-curriculum-in-england-mathematics-programmes-of-study","https://www.gov.uk/national-curriculum"]},"standard":{"system_id":"uk_england_nc","system_slug":"uk-england-nc","system_label":"England National Curriculum: Mathematics","code":"England KS3 Ratio, proportion and rates of change","label":"ratio; apply.","public_slug":"curratom-england-nc-key-stage-3-ratio-proportion-and-rates-rates-compound-units-such-as-speed-density-pressure","route":"/math/standards/uk-england-nc/curratom-england-nc-key-stage-3-ratio-proportion-and-rates-rates-compound-units-such-as-speed-density-pressure","data_json_route":"/math/data/standards/uk-england-nc/curratom-england-nc-key-stage-3-ratio-proportion-and-rates-rates-compound-units-such-as-speed-density-pressure.json","data_markdown_route":"/math/data/standards/uk-england-nc/curratom-england-nc-key-stage-3-ratio-proportion-and-rates-rates-compound-units-such-as-speed-density-pressure.md","skill_count":3,"skills":[{"title":"Proportional relationships across tables, graphs, diagrams, equations","route":"/math/skills/prealg/proportional-relationships-graphs-equations","family_name":"Ratio, Rate, Scaling, and Proportional Readiness","standards":[]},{"title":"Compound units: speed, density, pressure","route":"/math/skills/prealg/rate-speed-compound-units","family_name":"Ratio, Rate, Scaling, and Proportional Readiness","standards":[]},{"title":"Ratio notation and equivalent ratios","route":"/math/skills/ratio/notation-equivalent-ratios","family_name":"Ratio, Rate, Scaling, and Proportional Readiness","standards":[]}],"crawler_summary":"England KS3 Ratio, proportion and rates of change maps to 3 math skills."}}