This week, we have started our Mastering Number sessions. The children will be introduced to the rekenrek. This is one of the key representations used in the programme; the children will use it regularly to develop their understanding of numbers within 20 and the relationships between them. Like the other representations used, the rekenreks will also develop the children’s fluency. The structure of the beads on the rekenrek emphasises the ‘anchors’ of 5 and 10 and links a cardinal model (in which objects can be seen individually) with the linear number system (in which numbers are represented as points on a number line). Gradually, the children will be encouraged to visualise movements on the rekenrek before making them, with the aim that, over time, the rekenrek can become a ‘tool for thinking’. This will enable the children to calculate efficiently with understanding, without the need for a physical model. A great start Year 2!