When the winter or summer holiday comes, family children get together, then you want them to do something that not only can develop their intelligence, but also can let them have fun. How about give them a series of puzzles to build, such as school , zoo, country, vehicle, castle, character etc themes. They can choose their own favorite theme and then concentrate on finishing by themselves or in group, time is fling, children could also learn more patience, creativity and thinking from the puzzle assembling. As a parent, you can also spend more time doing your own jobs without worrying about your child having a boring time.