Effectiveness of Crowd-Sourcing On-Demand Assistance from Teachers in Online Learning
summary
TeacherASSIST integrates into ASSISTments so teachers add hints and full explanations as they assign problems, and the system redistributes those resources to other students. Over three years teachers create 40,292 new instances for 25,957 different problems, with 14 teachers each contributing >1,000 items. Two large randomized trials (2018–19) find crowd‑sourced assistance improves next‑problem correctness and increases students solving the following problem without further help, effects replicating across terms.
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