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## Exploring Equality and Composing Numbers

I’ve been working with my Firsties on the following TEK: 1.2(A) recognize instantly the quantity of structured arrangements Although it is not mentioned in the TEK, the mathematical word for this skill is subitizing. The dot patterns on dice and dominoes are...

## The Hiding Assessment in Action

Fluency and flexibility with numbers are the hallmarks of mathematical thinking. For our students to excel in mathematics, they must understand how numbers can be composed and decomposed. That’s why learning the combinations for numbers to 10 should be the...

## Ten Frame Mania–FREE App

Put two of my favorite things together–Greg Tang and a ten frame–and I’m a happy camper! I am in awe of Greg and the amazing resources he provide teachers for free on his website. If you have not tried his Word Problem Generator, you are truly...

## Exploring Comparison Subtraction with a Life-Sized Number Line

I borrowed this photo from Linda at Kinder Doodles!  Be sure to check out this post for great ideas for building number sense! Comparison subtraction is such a hard concept for kiddos!  Pose the following problem: Susan has 8 marbles.  Lisa has 3 marbles.  How many...

## Magic Dice

It was like Christmas for me yesterday! I got home from school to find boxes from both Amazon and Corwin Press. It’s quite possible that I have an obsession with books for teaching math. 🙂 One of the first books I looked through was Planting the Seed of Algebra,...

## What Do You Notice?

On my reading list right now is Connecting Arithmetic to Algebra, and I have to admit I’m only on Chapter 1. Not because it’s not a great read, but because Stephen King is winning the reading wars at this point. Anyway, Chapter 1 is about generalizing in...