Operations

Composing and Decomposing Numbers

As a young girl, I briefly took gymnastics lessons. Anybody else? I have to admit that I was not very flexibleโI couldn’t do a smooth backward roll to save my…

Brain-Boosting Equations

Are you looking for a way to provide your students with engaging computation practice? Today I have a super fun, brain-boosting, elementary math equations game! Brain-Boosting Equations is an activity…

Building Understanding for Multi-Digit Multiplication

As we begin to introduce multi-digit multiplication, the tendency is to dive right into the standard algorithm. While the standard algorithm is an efficient strategy, it is very procedural and…

FREEBIE for Composing and Decomposing Numbers

Composing and decomposing numbers is critical learning for Kindergarteners and 1st Graders. This is something that needs to be practiced all year long as students master the combinations first for…

Using Strip Diagrams as a Problem-Solving Strategy

There’s a lot to be learned from the data that comes from state testing if we use it correctly. Oftentimes, we’ll take a problem that students, as a whole, perform…

Composing and Decomposing Fractions

Not too long ago I wrote about the power of part/whole thinking, and how an understanding that begins in Kindergarten has tons of applications throughout the elementary curriculum. Here’s yet…

Subtraction with Regrouping: From Direct Modeling to the Algorithm

More and more curriculum maps are delaying the teaching of the standard algorithm for addition and subtraction until later in the year. This is a good thing! There are several…

Problem-Solving vs Word Problems

I remember preparing for an interview for my first teaching position in the 90’s. I was told that I would likely be asked to explain my approach to teaching problem-solving….

The Power of Part/Whole Thinking

Part/whole thinking begins in Kindergarten when students are expected to learn the number combinations for the numbers through 10. Below you see a graphic representation for the combinations for 5….