Take a look at this Year 1 The Number Line to 100 TPP which guides you through key teaching points and provides children with questions that you can discuss together. These discussions allow you chance to address any misconceptions and to reinforce accurate use of mathematical language. The PowerPoint contains a range of number lines focusing on the numbers between 50 and 100, some count in ones and some count in tens. There is a reasoning question at the end of the PPT to challenge your children's understanding. Give it a try with your class today.