The suggestion is that joining is better and the start will be faster. Fields Mathematics, which focuses on thinking mathematics in primary schools, adopts the "literature and history teaching method", integrates the mathematical question bank into the context of historical knowledge, leads out mathematical problems through historical allusions, and designs the key points and difficulties of mathematics in the explanation of historical stories and mathematical problems with attention and interest points, so that children can concentrate on it in class and improve learning efficiency. Fields mathematics, let children learn mathematics happily.