Khan Academy

Angle Basics: Measuring Angles In Degrees

Icon: 
Streaming icon

Let's find an exact way to measure an angle using a protractor. We'll also learn about acute angles.

Place Value: Comparing Place Values

Icon: 
Streaming icon

Comparing place values

Naming Angles Exercise Example

Icon: 
Streaming icon

Find the correct angle name(s) in this example exercise.

Decimals and Fractions on a Number Line

Icon: 
Streaming icon

We're mixing it up by placing both fractions and decimals on the same number line. Great practice, because you need to move easily between the two.

Units of Measurement Word Problem: Time to Leave for Home

Icon: 
Streaming icon

Mom asks you to be home by 5:45. You know the number of minutes it takes to get home. What time do you leave?

Place Value: Writing a Number in Standard Form

Icon: 
Streaming icon

Here's a big number that needs to be expressed in standard form. Can you do this example with us?

Understanding Whole Number Representations: Creating the Largest Possible Number

Icon: 
Streaming icon

Take numbers and move them into different place values to create the highest (and lowest) numbers possible.

Volume of Cones, Cylinders, and Spheres: Cylinder Volume and Surface Area

Icon: 
Streaming icon

Learn how to find the volume and surface area of a cylinder.

Categorical Data: Video Games and Violence

Icon: 
Streaming icon

This example shows how to categorize data to determine if there is a correlation between playing violent video games getting into fights.

Comparing Linear Functions Word Problem: Solving for Distance Climbed

Icon: 
Streaming icon

Solve a word problem both by writing a linear equation where height is a function of time, and by using a number line.

Pages