These tiles have the same colors as the ones teachers can purchase through CPM. Click the arrows in the lower right corner of the tile tools for similar shapes positive or negative. You can choose a tile and click on the board as many times as the number of tiles needed. Use the ABC tool to label the length and width of rectangles and to write the area in two ways.
Select the white arrow tool. Click on the blue point on the bottom left corner of each tile and drag to position. If you prefer not to have the blue points in the final diagram, right click on them and deselect "Show Label".