Embed pupils' understanding of representing numbers to 20 with our Year 1 Numbers 15, 16, 17, 18 and 19 Reasoning and Problem Solving activity. Children will demonstrate their understanding that teen numbers are made up of 1 ten and a number of 1s. They will explain the mistake on a part-whole model and complete loop cards by matching representations that show the same number.
This resource includes one reasoning and one problem-solving question to complete.