Students go over using number lines to solve the four equations in a fact family. In this lesson, students go over using number lines to solve the four equations in a fact family. Julia uses charts, ...

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

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hi there. I'm Miss James and I'm so excited to be learning with you today. For this lesson, all you ...

When you divide, you share or group an amount into a number of equal parts. Division is normally represented by the symbol ‘÷’. Division is the opposite of multiplication. Why not see how much you ...

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 ...

Sure, you can cut a pie into pieces, but what if it’s in four dimensions? Using spectral graph theory, mathematicians have solved a decades-old problem. Graph theory uses nodes and edges (dots and ...