## Description

Opportunities for practice play a critical role in learning complex behaviors. In the context of explicit mathematics instruction, practice facilitates systematic opportunities for students with mathematics difficulties to learn new mathematics content and apply such knowledge and skills to novel mathematics problems. This study explored whether there is an optimal amount of student practice that teachers should provide in core mathematics instruction to maximize the mathematics achievement of kindergarten students with mathematics difficulties, a so-called “Goldilocks effect,” as opposed to simply “more is better.” Results from observation data collected in a large-scale efficacy trial supported the latter rather than the former. Specifically, we found that three individual practice opportunities for every explicit teacher demonstration of mathematical content was associated with increased mathematics achievement for students with mathematics difficulties relative to fewer practice opportunities. Implications for facilitating frequent student practice opportunities during core mathematics instruction and designing professional development for teachers who work with students with mathematics difficulties are discussed.

## Citation

Doabler, C. T., Gearin, B., Baker, S. K., Stoolmiller, M., Kennedy, P. C., Clarke, B., . . . Smolkowski, K. (2019). Student practice opportunities in core mathematics instruction: Exploring for a Goldilocks effect for kindergartners with mathematics difficulties. Journal of Learning Disabilities, 52(3), 271–283.