[Free Registration/Login may be required to access all resource tools.] The video uses pictures to determine which set of pictures represents the addition problem 3 + 6 = 9. The video is followed by practice problems.

This learning games focuses on addition and subtraction by filling in the missing number. At the end children can use the arrows on the computer to work a boy through a maze.

Addition practice where students pick the blocks that add to the given sum.

Students fill in an addition chart by picking the correct addends.

Students will play learning games to explore addition.

Help keep the carnival parade safe by helping officer Davi with his addition and subtraction!

Students will complete a series of learning games to practice addition with standard algorithms.

Students complete a series of learning exercises to practice addition and subtraction.

Meet Pickles the penguin and visit Antarctica for an addition adventure.

An extensive discussion of vector addition with links to interactives and exercises.

This Java applet simulation explores vector addition of two vectors in two dimensions. Given the magnitude and direction, students must determine the vector components.

Kodi the sled dog needs your help. Can you help him count?

Go shopping with Annie and learn to add and multiply.

Count the fruits and pay the right amount of money to buy them at the market!

Go truck spotting with Ellie and add up all the numbers.

By the end of this section, you will be able to understand the rules of vector addition and subtraction using analytical methods, apply analytical methods to determine vertical and horizontal component vectors, and apply analytical...