Description of learning situation: There are 9 seventh-grade students, who are divided into group A with 4 students and group B with 3 students according to their abilities, and the other 2 students can't take part in the project learning. All the students in the class have a certain literacy foundation. Some students have good self-care ability and certain life experience. Let the students sum up their own life experience and let them find their own ways to distinguish.

Teaching objectives:

1. Knowledge and skills: Knowing the names of condiments can distinguish different characteristics of condiments.

2. Process and method: Learn to distinguish condiments by looking, smelling and tasting.

3. Emotional attitudes and values: Improve students' interest in housework and cultivate students' emotional attitude of loving life.

Teaching rules:

1. Create a life situation, let the classroom come from life and finally return to life.

2. Mobilize students' vision, smell and taste, and carry out multiple sensory stimulation.

3. Team cooperation, so that Group A can drive Group B students to improve and develop together.

4. Use multimedia to integrate rich life into it.

Teaching preparation:

Computer courseware, salt, sugar, monosodium glutamate (chicken essence), soy sauce, vinegar and other condiments, two cold dishes, one set for each group.

Teaching process:

First, create a situation to stimulate interest

1. Show two cold dishes: Have a taste and tell me which one you like and why.

Why does everyone like this dish but not that one? (no taste)

3. A delicious dish needs raw materials and condiments. No matter how good the food is, it won't taste good without condiments.

4. Uncover the topic: How to correctly distinguish condiments?

Comments: By introducing two different cold dishes, students can quickly enter teaching activities, and at the same time pave the way for the future use of condiments, so that the classroom comes from life and eventually returns to life.

Second, learn to distinguish condiments.

1. Name it. Do you know what condiments are put in this delicious dish?

Find these in your own condiments and tell me how you know them.

Comments: Starting from students' life experience, arouse students' perceptual knowledge and stimulate their interest in learning.

3. Guide students to sum up the differences: Look

① The courseware shows different condiments and guides students to look at the names.

Ask the students to take out the condiments they want from different condiments according to the requirements.

(Group A students look for it first, and Group B students look for it later)

Comments: Use multimedia courseware to show different condiments to help students observe and enrich their understanding.

③ Guide to observe the different particles and colors of salt, sugar and monosodium glutamate.

④ Add different names in front of the corresponding condiments.

(Mr. A, the younger generation of Group B)

There is soy sauce and vinegar on your desk. Can you tell the teacher which is soy sauce and which is vinegar?

Tell me, how do you know?