One of the most fundamental strategies in mathematics instruction is practice problems because teachers know that practicing a skill improves performance. At the same time, teachers also know that just because students can correctly answer practice problems does not mean they fully understand the concept or how to apply a formula--especially not…

The study compared the effectiveness and efficiency of concurrent and isolation-intermix instruction in teaching four preschool children to read common words in their environment. Concurrent instruction resulted in students learning conditional discriminations in fewer trials and minutes of instructional time suggesting the value of teaching…