Properties of Shape Mystery

This resource written by Shirley Fall has fifteen cards each with a statement about 2-D shapes and how they lie on a 3 by 3 grid. The rationale is for students to discuss the possible options and work towards a solution of which 2-D shape lies in each of the grid cells. Extension questions are also posed.

The file named 2-D Shape cards has a grid with a solution to the mystery and also six additional cards with rogue shapes. The cards can be used as support materials, either by giving just the correct cards or the additional cards too. This allows for differing levels of support depending on the ability of the students.

A blank 3 by 3 grid is available as separate file and it is recommended to enlarge this to A3 size. The mathematics students will need: Lines of symmetry; Centres of rotation; Properties of quadrilaterals; 'Regular’ shapes. Teachers' notes including some solutions are in the background information for this collection.