1. Observe the waste phenomenon in life and understand the harm caused by waste;

2. Be able to oppose waste and avoid waste in life.

3. Cultivate students' good habits of opposing waste and advocating saving.

Emphasis and difficulty of teaching

Teaching emphasis: be able to oppose waste and avoid waste in life.

Teaching difficulties: observe the waste phenomenon in life and understand the harm caused by waste.

Teaching preparation: teachers make courseware and collect case materials; Students look up information about waste before class and investigate the harm of waste.

teaching process

First, introduce storytelling.

1. Tell a story: cry for food.

Teacher: Students, what do you think after listening to the story?

Student: Free to answer.

2. Thinking: Besides the waste in our school, where have you seen waste?

3. Teacher: When we enjoy the delicious food on the table, we may also produce waste. Today, let's talk about waste. Write on the blackboard: How much waste could have been avoided-the waste on the dining table.

Second, the exploration of new knowledge: waste at the dinner table

(1) Take a look, read and think.

1. Look at some waste phenomena. Have you ever seen or experienced such a waste?

2. Thinking: Have you ever seen such a waste phenomenon in our school canteen?

Have you ever had such a wasteful experience? Talk to your deskmate.

4. Tell you: There are many forms of waste. It is a waste to throw away food you don't like.

5. Teacher's summary:

It is a waste to throw away food you don't like; It is a waste to throw away old toys; It is a waste not to turn off the tap conveniently; Gluttony is also a waste ... this waste is easily overlooked. Maybe the amount wasted at one time is not much, but it is a great amount as time goes on.