There are 20 creatures altogether. We can use a part-whole model to show the two groups and the total of 20. We can use a part-whole model to show the two groups and the total of 20. We can use a bar ...

[bright music] - Hello, my name is Ms. Tahese. I'm a first grade teacher and today I'm going to show you two strategies that we can use when we're adding numbers or subtracting numbers within the ...

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 ...