Checkup: A Learning Health Check for Elementary Math

Field notes

Checkup sends a child a KakaoTalk link to an 18–80-question mathematics assessment covering elementary grades 1–6. Its second section changes according to the first section’s answers, and the service traces errors to prerequisite concepts before producing a same-session parent report and four-week sequence. Each question is described as carrying concept, difficulty, and prerequisite metadata. The page lists a first assessment free of card registration, followed by parent subscriptions from 9,900 won per month.