Combining physical and virtual manipulatives gives students the ability to concretely model things in the real world.

In fourth grade, students focus most on using all four operations - addition, subtraction, multiplication, and division - to solve multi-step word problems involving multi-digit numbers. Fourth-grade ...

This is a preview. Log in through your library . Abstract Conceptually based instruction on place value and two-digit addition and subtraction without regrouping was provided in four first-grade ...