This courseware focuses on the knowledge of counting different groups. It defines it as forming smaller groups from a larger set, with the last count representing the new group's quantity. It elaborates on its life applications and benefits for learning. The steps are introduced, stressing not always starting from 1 and how to correct mistakes. Practice activities like cube - counting and two - person cooperation are carried out. Finally, it summarizes key points, raises questions and encourages continuous practice.

Main Content:
1.Section on the Concept of Counting Different Groups
2.Section on the Reasons and Applications of Counting Different Groups
3.Section on the Steps and Methods of Counting Different Groups
4.Section on Practical Activities and Exercises

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