Learning Resources Pattern Block Activity Set. Play-based learning with Pattern Blocks geometric shapes help children identify and recognise shapes, organise visual information, and builds problem-solving skills. With these sets, children use the brightly coloured geometric shapes to complete the picture puzzles. Use the Pattern Blocks included in this set to complete the creative geometry puzzles on the 20 double-sided challenge cards. Set contains 144 pieces. Cards measure 21cm L x 28cm W. Ages 4+. Warning: SMALL PARTS Not for children under (three) 3 years.