Students practice addition and subtraction problems without regrouping. In this lesson, students practice addition and subtraction problems without regrouping using base-10 block manipulatives and ...

In this study, we investigated the fluency with which first graders of different mathematical achievement levels applied multiple, school-taught strategies for finding arithmetic sums over 10. We ...

First graders are years away from finishing high school and choosing careers. But as a group of 1st grade teachers in a Kentucky district work with their young students on reading, writing, and math, ...