It makes sense that when learning about place value, using a number line shows children the sequential numbers forwards, backwards and reinforces the process of skip counting. If you take a number line from 0 to 60, bend it into a circle you have yourself a number line clock face! I have found that using this method after teaching students about number lines has really helped them to understand the concept of increasing minutes, skip counting by increments of 5, o’clock, half past, quarter past,