# Monthly Archives: October 2018

## Addition with Partial Sums

Dr. Powell shows how to teach the addition of two-digit addends to find a sum using the partial sums method. This video is part of the Project STAIR series.

## Subtraction with Partial Differences

Dr. Powell demonstrates how to teach subtraction using the partial differences method. This video is part of the Project STAIR series.

## Subtraction with Adding Up

Dr. Powell demonstrates how to teach subtraction using the adding up method. This video is part of the Project STAIR series.

## Multiplication with Area Model

Dr. Powell demonstrates how to teach multiplication using the area model. This video is part of the Project STAIR series.

## Multiplication with Partial Products

Dr. Powell demonstrates how to teach multiplication using the partial products strategy.

## Multiplication with Lattice Method

Dr. Powell demonstrates how to teach multiplication using the lattice method.

## Explicit Instruction

Dr. Powell demonstrates how to use explicit instruction, a critical tool in teaching students math.

## Mathematical Language

Dr. Powell examines both the challenges of using proper mathematical language as well as strategies and examples to help teachers use precise and specific language to help students learn math.

## Division with Partial Quotients

Dr. Sarah Powell demonstrates how to teach division using the partial quotients strategy.

## Division with Lattice Method

Dr. Powell demonstrates how to teach division using the lattice method.