<p>The tarsia puzzle could be used as a quick review activity, alongside an extension worksheet to encourage students to think of the number of bits required when converting values.</p> <p>The tarsia puzzle is made up of 9 triangles which the students can cut out and then rearrange to match binary numbers to their decimal equivalent.</p> <p>The worksheet looks for the students to convert decimal to binary in the fewest possible bits and then leaves a space for the students to make up their own questions.</p> <p>There is a solution sheet for the tarsia puzzle and the worksheet, as well as reference sheet for students on how to complete conversion between binary and decimal.</p>