Learn about the different colours and see how they affect the real world. To learn colours: spend one week focusing on each colour in the rainbow. For example, with yellow: have the kids pick out clothes with yellow, use yellow toys and foods, go on nature hunts for yellow, use small yellow items to create the word yellow, reward with yellow stickers, etc. Finally at the end of the week, visit a store and walk around while the kids point out everything yellow they see. The culmination of each colour week can end at the store and the kids can pick a single book with yellow on the cover and a single yellow toy.
Photo Source