This virtual manipulative is designed to teach the concept of a function by allowing you to experiment with various functions.
Observe the output of a function by dragging numbers from the top left corner to the IN chute of the function machine. T...he function machine will process the number and produce an output value.
-Make a guess what function the machine is using by observing the output.
-Use your guess to decide what the remaining entries of the table should be and type them into the boxes.
-If one of your entries doesn't match the computer function, you will get an error message.
-Click New Function to try a new function[more]

This virtual manipulative allows you to solve simple linear equations through the use of a balance beam. Unit blocks (representing 1s) and X-boxes (for the unknown, X), are placed on the pans of a balance beam. Once the beam balances to represent the... given linear equation, you can choose to perform any arithmetic operation, as long as you DO THE SAME THING TO BOTH SIDES, thus keeping the beam balanced. The goal, of course, is to get a single X-box on one side, with however many unit blocks needed for balance, thus giving the value of X.
There are more instructions to the right of the manipulative.[more]

Add a pentomino to the workspace
Click on the button of the shape you want. You can move a pentomino by clicking and dragging it to a new location. When you place a pentomino next to another one, their edges will snap together.
Rotate
Click on the... corner of the pentomino. Hold down the mouse button and move the mouse in a circular motion to rotate the pentomino. Then release the mouse button.[more]

This virtual manipulative uses plus-minus chips to demonstrate adding positive and negative values.
Using this virtual manipulative you may:
-Solve a problem using chips
-Try a new problem
There are instructions to the right of the manipulativ...e.[more]

Algebra Balance Scales - Negatives – Solve simple linear equations using a balance beam representation. There are more instructions to the right of the manipulative.

The goal of this puzzle is to rearrange the fifteen numbered tiles to make a particular pattern.
There are fifteen numbered tiles and one blank space. The tiles are moved around by clicking on a tile next to the blank space (with one edge next to th...e blank) to slide it into the blank spot.[more]

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