Conceptually based instruction on place value and two-digit addition and subtraction without regrouping was provided in four first-grade classrooms, and more conventional textbook-based instruction ...

Teaching in Room 9 Comparing Numbers Using Place Value | 3rd Grade Math Special | 28m 35s | In this lesson, students will learn how to compare numbers using place value with Mrs. Brewer.

Teaching in Room 9 Number Recognition and Place Value 1 | 2nd Grade Math Special | 28m 27s | CC Ms. Knarr will teach the students of Teaching in Room 9 to recognize numbers without counting and ...