As they do so, they try to keep up with the calculator by saying the numbers orally as they come up in the display, and even trying to say them before they come up. Students use a beginner's Logo to explore movement in two-dimensional space. They move the turtle on the computer screen forward and backward with simple commands and also turn the turtle through predetermined angles to the right and to the left with other commands. The turtle leaves a trail of where it's been on the screen so that its movements actually create a drawing of a figure. The students try to have the turtle draw a square, a different rectangle, and a triangle before progressing to harder tasks.
Students use a geoboard to make shapes that are composed of unit squares.
One challenge they are given is to find as many shapes as possible that are made up of 10 unit squares. Use a variety of tools to measure mathematical and physical objects in the world around them. Young students develop meaning for rulers by first measuring with individual paper clips, then a paper clip chain, then taping the clip chain to a paper strip, then marking and numbering the ends of the clips on the strip, and last, removing the clip chain from the paper strip leaving just the marks and the numbers. This leaves the students with paper clip rulers with which they can measure the lengths of a variety of objects. The unit of measurement is, of course, a paper clip.