A number of diagrams are presented to students. The idea is to try to estimate what fraction of the diagram is shaded in. Examples get progressively more difficult as they work their way through the list of diagrams. A second set of examples is included for more practice. The activity can be used to enhance classroom teaching of fractions.
There are two .tns files, each with over 40 different examples. The final page of each file provides a list of answers so that students can check their work.
A .doc file is also provided with 20 similar questions should you wish to provide a paper-based version of the activity.