## How To Teach Algebra: The Distributive Property Progression with the Area Model (CRA)

How To Teach Algebra: The Distributive Property Progression with the Area Model (CRA) “Ditch the algebra tiles!” Many middle school and high school teachers will often eliminate the use of algebra tiles / mathematical models or in many more cases not even...

## Exploring Proportional Relationships Developmentally

Over the past few years, I have been spending a lot of time thinking about proportional relationships. From unpacking the information in the Paying Attention to Proportional Reasoning document to meeting with a proportional reasoning symposium group through the...

## The Progression of Division

Division From Fair Sharing to Long Division and Beyond Over the past school year, I have had an opportunity to work with a great number of K to 8 teachers in my district with a focus on number sense and numeration. As a secondary math teacher turned K-12 math...

## Counting Principles – Counting and Cardinality

A Progression of Counting and Quantity Success in mathematics begins with the development of a sense of number through counting and quantity. It may seem that children learn to count in much the same way that they learn their alphabet – by simply repeating...

## The Progression of Fractions

Exploring Fraction Constructs and Proportional Reasoning Fractions are a beast of a concept that causes struggles for many adults and students alike. While we all come to school with some intuition to help us with thinking fractionally and proportionally, the...

## The Progression of Multiplication

Arrays and Area Models to The Standard Algorithm Did you know that the words “array” and “area model” appear in the Grade 1-8 Math Curriculum a combined 22 times? Not only do arrays and area models help to support the development of...