On this interactive site students practice with both simple addition and time. At the end of the lesson students will be able to use the term "one minute" to describe time and create and solve simple addition stories in similar contexts.

In this video, musician Jake Shimabukuro uses the pitch of musical notes and vibrations in hertz to illustrate the concept of ratios. This clip is from Center for Asian American Media. In the accompanying classroom activity, students...

This is a resource for many topics in probability and statistics. Click on the topic of your choice for an explanation. The sites you will be linked to are quite extensive. A degree of higher-level math is necessary for understanding...

Do you want to give the SAT math section a try? Take an online practice test to see where your score will take you.

Gain an understanding of average velocity and speed with this helpful reference tool. Provides a detailed definition and examples that enhance further explanation. Includes links to related topics.

Biographies of Blacks in mathematics from the 1700s to the present time.

This resource covers basic multiplication where students can choose a range of numbers including negatives or even decimals. After selecting parameters students are timed completing ten problems with instant feedback and an opportunity...

This resource covers numbers in sequence where students can choose a range of numbers and which number they want to practice counting by to determine the missing number in the set of numbers. After selecting parameters students are timed...

Given the height and volume of a certain cylinder, Jill uses the volume formula to compute its radius. If a second cylinder has the same volume as the first, but is 100 times taller, what is its radius? Aligns with A-SSE.A.1.

This task models a satellite orbiting the Earth in communication with two control stations located miles apart on Earth's surface. Students determine distances between various locations and, given a rate of travel, they determine the...

For this task, students use a piece of string or another tool to measure the radius of the circle and then mark off the corresponding arc length on the unit circle as many times as they need to for 0, 1, 2, 3, 4, 5, and 6 radians. They...

This task asks students to analyze a set of data about the height of a basketball for each time it bounces. They choose a model that reasonably fits the data and use the model to answer questions about the physical context. This second...

In this task on exponential decay, students calculate what the amount of Carbon 14 left in a preserved plant will be as time passes and when one microgram will be all that is left. Aligns with F-LE.A.1.c.

An introduction to exponential equations that describe growth and decay over time. Variables and constants in the equation are explained.

Remember, anti derivative of acceleration with respect to time is velocity and anti derivative of velocity with respect to time is distance where acceleration, velocity, distance are all functions of t, the time. This concept is very...

Practice identifying the types of correlations shown in scatter plots. Sometimes we see linear correlations (positive or negative), sometimes we see non-linear correlations (the data seems to follow a curve), and other times we don't see...

See what Khan Academy can offer including a personalized learning experience that uses videos, exercises, and articles to engage students across a wide range of subjects, with a special emphasis on math and computer programming.

It's time to stand in the spotlight! During this Afterschool Adventure, children will learn about and practice a variety of math skills as they gather information about their favorite subject-themselves! Children will start out by...