1. The little mouse loves math. This set of books is divided into two series: 2-4 years old and 4-6 years old. Each series has 10 books and one ***20 books. If you have a caterpillar reading pen, you can read it. Combining the story-telling process and introducing mathematical concepts, the picture book is beautifully made. Recently, I read two books before going to bed every day.

2. Seven Thoughts and Moby Mathematics put these two series together, mainly because they are both published by Learning and Thinking. Before Moby loved mathematics, the order of learning was seven thoughts. I have to say that the series of textbooks published by learning and thinking are reliable in quality and beautifully written. I also like browsing.