In this engaging maths lesson, the children focused on the concept of size by helping our book character, Lulu, with her birthday presents. Their initial excitement involved giving the wrapped gifts a good shake and guessing what might be inside! The main objective of the lesson was categorization by size. The children actively helped Lulu sort all the gifts into two distinct piles: big and small. Taking turns, each child eagerly chose a present and correctly placed it into the appropriate category. To support their learning and vocabulary acquisition, we utilized sound buttons and Widgit visual aids. These resources were instrumental in helping the children differentiate clearly between the terms "big" and "small." The children demonstrated a brilliant understanding of size differentiation and did an excellent job accurately sorting all of Lulu's gifts. This hands-on activity provided a fun, tangible way to reinforce early measurement concepts.