Below are numerous Powerpoint files I have created for Math teachers:

Number Sense

Mathematical Modeling to Improve Number Sense

Beginning Number Sense (subitizing)

Place Value

Is Zero a Number?

How Big is a Million?

Basic Operations

The Four Basic Operations:  Addition, Subtraction, Multiplication, and Division

Adding & Subtracting

Basic Addition Facts

Fractions & Decimals

Fractions with Pattern Blocks

Decimals with Base Ten Blocks

Patterns, Functions, and Algebra

Patterns, Functions, and Algebra

From Arithmetic to Algebra

Other Math

Cool Probability Problems

Fair Division

Problem Solving and Fun Stuff

My Favorite Math Problems

What’s the Difference between a Mathematician and a Magician?

Problem Solving with Playing Cards

Miscellaneous

NCTM Standards vs Virginia SOLs

How do Math Students Feel?

I Have, Who Has?

RCPS SOL Math Scores 2005-15