Through learning, children can list the subtraction of 8 according to the different numbers of birds in the scene, so that they can better understand the exchange law of 8. In learning, children can observe and tell the differences of birds by using flip charts, so as to exercise their language ability and careful observation ability, master the subtraction of 8 according to the law, and then transition to throwing snowflakes, further consolidating the subtraction of 8. In children's mathematics education, teachers should create an environment suitable for children, provide meaningful operating materials and opportunities, encourage children to discover and communicate, enrich children's mathematics experience and promote the development of children's logical thinking.

Disadvantages:

Learning addition and subtraction is boring for children. According to the individual phenomenon of individual children, put rich materials in the area to let children practice more.

Through today's teaching, I understand that it is extremely important to cultivate students' interest in learning mathematics, which requires teachers to spend more time preparing lessons and entertaining.