{ "name": "Integrals", "order": 5, "challenges": [ { "id": "59a5801209a6acac5983b567", "title": "Areas and distances", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a702", "title": "Definite integrals", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a703", "title": "Fundamental theorem of calculus", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a704", "title": "Indefinite integrals and the Net change theorem", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a705", "title": "Substitution rule", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] } ] }