Estimating fractional areas

An activity to help students think about and appreciate simple fractions.
Verlag: Texas Instruments UK
Herausgeber: Barrie Galpin
Autor: David J C Elgin
Fach: Mathematik
Students are required to estimate what fraction of a shape is shaded.
There are 30 different diagrams and in each one students are asked to try to shade in a certain specified fraction of the shapes presented. When they click on the slider the fraction shaded is revealed.