Hello, I'm Mr Firth, and I need your help today as we learn to add and subtract within ten. You can use lots of things to help you add and subtract. Counters, number lines and even your fingers. Let's ...

Practice adding and subtracting within 20 using a Double 10-frame & number line. Represent a teen number using a number bond to solve a Mystery Math Mistake. Use Notice and Wonder with a marble game ...

Picture a bridge made of Legos. One side has three support pieces, the other two. How would you stabilize the bridge? Most people would add a piece so that there are three supports on each side, a new ...

Fractions, often perceived as daunting, become manageable with the right approach. Addition and subtraction require finding a common denominator, while multiplication involves directly multiplying ...

Watch the video to learn about adding and subtracting with negative numbers on a number line and by using number discs. Adding and subtracting with negative numbers. Let's talk about two ways to help ...