Click on the Green Flag to start. To make a clone of the triangle POINTING UP, click the UP ARROW button. To delete the clone, click the DOWN ARROW button. Then drag it out from the original triangle. To make a clone of the triangle POINTING DOWN, click the RIGHT ARROW button. To delete the clone, click the LEFT ARROW button.Then drag it out from the original triangle. You may then form triangles in a straight row by dragging the triangles. Study the number of sticks used to form the figure you made. Remember to count the overlapping side as 1 stick!
