What do a secant, chord, diameter, and radius all have in common? They are all components or measurements of a circle! This clip quickly defines each of these terms using verbal, written, and diagram examples.

Examples of Khan Academy practice problems where you compare decimals, fractions, and number diagrams.

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 2 of 8 in the series titled "Drawing a Diagram."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 5 of 8 in the series titled "Drawing a Diagram."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 6 of 8 in the series titled "Drawing a Diagram."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 8 of 8 in the series titled "Drawing a Diagram."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 1 of 8 in the series titled "Drawing a Diagram."

This lesson demonstrates how to express math in terms of pictures, and how to translate pictures to math. It is 3 of 9 in the series titled "Expressing Math in Pictures."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 3 of 8 in the series titled "Drawing a Diagram."

This lesson introduces the idea that math can be expressed using pictures. It is 4 of 5 in the series titled "Math as Pictures."