Teaching objectives:
1, through specific operations, master the classification method and realize that different classification standards have different classification results.
2. Try to record the data in your own way and feel the simplicity of the chart.
3. Understand the purpose and function of classification in connection with real life.
Teaching difficulties and tools:
1, teaching focus: learn the method of object classification and classify it correctly.
2. Teaching difficulties: You can choose different standards to classify objects differently.
3. Teaching tools: multimedia courseware teaching pictures.
Refer to the above content: Baidu Encyclopedia-Primary School Mathematics Textbook