Click on the buttons at the bottom of the page to control the movement of the turtle. Move forward, back, turn right or turn left, put the pen up or down, set the penwidth, set the pencolour and send the turtle back home. You can drag the turtle directly with the mouse, but make sure the pen is up, otherwise you will draw a line when you drag it! You can configure the way the turtle moves by clicking on the configure tool at the bottom right of the page.