Mathematics - Geometry - Congruence and Similarity - Congruent figures - Identical Twins

Show pairs of shapes. Some are congruent (same shape AND size), some are similar (same shape, different size), some are neither. The student sorts into: 'Congruent' vs 'Not Congruent'. Include: rotated congruent shapes, flipped congruent shapes, similar but not congruent. The key test: if you could