1. Understand the significance of subtraction in specific situations and activities.

2. Can list and read the subtraction formula, and can correctly calculate the subtraction within 5.

3. Can solve the simple subtraction problem in life according to the provided situation.

Teaching emphases and difficulties:

Understand the meaning of subtraction, correctly calculate the subtraction within 5, and be able to contact

Life actually solves real life problems.

Teaching aid preparation:

Situation map, language card, multimedia

Teaching process:

Step 1: Create a situation.

Show the fruit tree chart, let the students observe the chart, read the information in the chart, and let the students use their own language.

To describe this information.

2. The significance of experiential subtraction

1. Guide the students to observe the pictures and say what they see with a smile/

2. According to the diagram, ask questions and lead to subtraction.

There are five apples on the tree, but two are missing. How many apples are left on the tree?

How do you know it's three? As can be seen from the figure. Less than five. Two equals three.

Two fifths can be expressed by a subtraction formula, and the middle is 5-2 = 3.

The symbol is a minus sign, and the formula reads 5 minus 2 equals 3. It means there are five apples, and two have been removed.