This task aligns to 3.OA.1.  Students decompose an array into two smaller arrays to explore how to decompose a factor in a multiplication situation. This is remixable. 

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Use your tiles to build a 7x6 array. Decompose the array into two smaller rectangles.

 Decompose the 7x6 array into two smaller rectangles in two MORE different ways.

 For each way that you decomposed the array, write an equation that matches your strategy.

 Work with a partner to evaluate each other’s arrays. Critique their strategy and their reasoning.

 Write a sentence comparing one of your strategies and your partner’s strategies for decomposing arrays.