HELLING, Jeffrey; MCLAUGHLIN, T. F.; WEBER, Kimberly P.; DOLLIVER, Mary “Polly; SLOTVIG, Peggy. The Effects of Direct Instruction Procedures with a Place Value Chart and Model-Lead-Test Error Correction Procedure to Teach Regrouping with Three-Digit Subtraction Accuracy: A Case Study Disabilities. International Journal of English and Education, [S. l.], v. 5, n. 1, p. 391–402, 2016. Disponível em: https://ijee.org/ijee/article/view/644. Acesso em: 28 oct. 2026.