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Algebra Mystery

This resource written by Shirley Fall has thirteen cards each with a statement about algebraic expressions and how they lie on a 3 by 3 grid. The rationale is for students to discuss possible options and work towards a solution of which algebraic expression lies in each of the grid cells.

The file named algebraic expression cards has a grid with a solution to the mystery and also three additional cards with rogue expressions. 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:
Addition and subtraction of linear algebraic terms of the form aϰ + b;

Expansion of c(aϰ + b) and factorisation of acϰ + bc.

Teachers' notes including some solutions are in the Leading in learning teachers' notes for this collection.

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