[Free Registration/Login may be required to access all resource tools.] The video involves filling in a chart of start time, end time, and elapsed time describing how to add and subtract time in hour and minutes. The video is followed by...

In this learning activity from Statistics Canada, students will learn the value of census data when it is totaled and linked with different geographic regions. As part of this lesson plan, students will work with a neighbourhood map and...

From basics such as adding and subtracting money, converting coins, and making change to more advanced topics such as sales tax and simple interest, this interactive tutorial offers help with consumer math issues.

Use the measuring scales to determine which of the three fruits is heaviest in each question. You may need to add or subtract the weights of other fruits to find out how much each fruit weighs!

[Free Registration/Login may be required to access all resource tools.] Locate the video "Calculating Sums: Less Than, Greater Than, or Equal to Numbers (Numbers to 1,000)." In this learning module, students must add or subtract to find...

Find a great selection of non-Java math flashcard activities. Choose from an index of flashcard topics of a variety of difficulty levels. Topics include: basic and advanced addition, subtraction, multiplication, and division, algebra,...

[Free Registration/Login Required] Students will know: Customary and Linear Measurement Vocabulary, How to use the conversion table for customary and metric units of length to convert units of measurement, How to add and subtract units...

Learners can test their knowledge of adding and subtracting positive and negative numbers with this interactive quiz.

Find more than 500 "mental calculation tricks" that will help you square numbers, add, multiply divide, subtract, and find percentages. A great resource for advance math students, gifted children, and teachers wanting to find ideas for...

This task challenges a student to demonstrate understanding of concepts involved in addition and subtraction.

This task challenges a student to use place value knowledge and understanding of operations.

In groups of two or three, learners decide on what to order at a pizza place given a set budget and a menu.

In this feature, adapted from Interactive NOVA: Earth, students explore the relationship between oxygen concentration and the well-being of various organisms by simulating a change in oxygen levels and observing what happens.

This lesson plan provides students with an opportunity to demonstrate their understanding of real-world integers and create a PowerPoint presentation. It contains an assessment rubric as well as ideas for grouping students and managing...

In this science fair project, paint color pie slices onto a wheel and spin the wheel on an electric drill. See how colors add together to make new colors. The Science Buddies project ideas are set up consistently beginning with an...

Sal adds 53+17 by breaking apart the numbers and making a group of 10. [3:35]

Practice breaking apart big addition problems using place value. For example, 234+567 is the same as 200+500+30+60+4+7. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...

Use this Web site to practice finding equivalent fractions using a matching game format. CCSS.Math.Content.3.NF.A.3.a Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.

On this one page website sharpen your logic and fraction skills while working on this challenge. The solution is available to double check your solution.

The purpose of this task is to help students develop flexible strategies for adding and subtracting within 20. Students will pick 5 number cards from pre-made cards labeled 1-10. Then, another student will pick a "target number" between...

Try making words on the screen disappear by changing the background color of this page. Add or subtract red, green, or blue, and see how light is made up of many different colors.

Students learn the importance of math accuracy and, more specifically, that knowing how to add, subtract, multiply, and divide fractions make life easier for everyone. To help students come to this understanding, they are assigned to a...

Assess your knowledge of adding, subtracting, multiplying, and dividing fractions with a game of jeopardy.

You can use an abacus to count, add, subtract, multiply and more. Try this interactive abacus and see if you can make the numbers. Choose "here's more" for some clues. Good luck!