Helping students to develop math fluency takes more than just flash cards. It requires teaching them how to think about ...

When you estimate a number you decide approximately, or roughly, how big that number is. To estimate accurately, you need to have a good understanding of the value and order of numbers. A number line ...

What is a number line? A number line is a straight line with numbers written in order from lowest to highest. Number lines can go up to any number, such as 10, 20, or even more! They help you to see ...