It is because students are allowed to explore independently, focus on the relationship between quantity and quantity through list enumeration, and seek simple ideas to solve the problem of the number of chickens and rabbits in the same cage, so as to develop students' sense of number, improve their analytical reasoning ability, solve practical problems and understand mathematical ideas. Just like ancient westerners put small stones on the seashore for mathematical research, chickens and rabbits in the same cage all express mathematical problems through objects, because the mathematical research between chickens and rabbits is valuable.
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