Examine geometry first-hand through this web activity by drawing geometric shapes with toothpicks.
Directions for using this applet:
Creating a toothpick: Left-click on the toothpick box to pull another toothpick out. There is no limit on the number you may use.
Selecting a toothpick: Left click on a toothpick to select it. A selected toothpick will become slightly darker and will become the top toothpick. A toothpick will rstrongain selected until you left-click elsewhere on the board or on another toothpick. (Note: Right-clicking elsewhere on the board will not deselect a toothpick.)
Rotating a toothpick: Left-click on a toothpick to select it. Once it is selected, you may rotate it 45 degrees by pressing the right mouse button (Alt-Click on a Mac) or 'R' on the keyboard.
Moving a toothpick: Left-click on it to select it and drag it to the desired location. You may use the arrow keys to move it small distances.