From fractions and decimals to distance and time, the humble-but-versatile number line can deepen students’ understanding of ...

Addition & subtraction strategies to solve two-digit equations using an open number line. In this lesson, students go over using different addition and subtraction strategies to solve two-digit ...

Want to help your third-grader master the basics of 3rd grade math? Here are some of the skills your child will be learning in the classroom. Understand what it means to multiply numbers – for example ...

Among high school students and adults, girls and women are much more likely to use traditional, step-by-step algorithms to solve basic math problems – such as lining up numbers to add, starting with ...