In order to let children know that bananas can't be eaten after peeling for too long, eating them is bad for their health and will affect their health.
moving target
1, do experiments to let children know some scientific phenomena.
2. Let children know that peeled bananas should be eaten in time and not kept for too long.
3. Let children feel the joy of doing experiments with teachers and companions.
Important and difficult
Key points: bananas should be eaten in time after peeling. Eating too long is not good for your health.
Difficulties: Let children know some scientific phenomena. Banana skin protects bananas. When peeling, the banana skin will turn black when it comes into contact with air.
Activities to be prepared
1, two fresh bananas and one banana peeled for a long time.
2. Experimental preparation: 2 bananas, 2 paper plates and a plastic knife for the cake.
Activity process
Process 1: First, put the banana in the invisible bag, and let the children guess what the teacher brought to the children today, so that the children have a mysterious feeling. Teachers can remind children what to bring and let them think and guess freely.
Process 2: After the children guess, the teacher takes out bananas and puts them on a paper plate prepared in advance to prepare for the experiment.
Process 3: experimental observation.
1, the teacher first took out a banana peeled for a long time and asked doubtfully, do children know why this banana turned black? Let the children answer freely. After the children finished speaking, the teacher said mysteriously, will the teacher take the children to find the answer?
2. Take out a fresh banana, put it on a paper plate, divide one into several parts, and let the children observe it after four hours.
3. In this process, you can play some games about bananas with your children, such as: put bananas down, what do bananas look like, what do bananas look like, what do bananas look like, what do bananas look like? Wait, the game.
4. After four hours, let the children observe the color change of this banana and turn it into black.
5. Put the second fresh banana on the board. Put it on a paper plate and divide it into several portions. Let the children observe whether the color is the same as the first banana.
6. To sum up, banana skin protects bananas. When the banana skin is peeled off, the air will touch the banana, so the banana will turn black.
Teaching reflection
Through this lesson, let children understand that bananas should be eaten in time after peeling, because banana peel protects bananas, and it can't be preserved for too long after peeling, which is not good for health, and inspires children to pay attention to eating hygiene habits in their later lives. When I was studying this activity, some children communicated with me, and some children also had the phenomenon that bananas were still eaten at home for too long. After learning this lesson, they know that bananas that are sick from the mouth, discolored or rotten are not edible.
I think if I take this lesson again, I should broaden my mind. Besides explaining bananas to children, I should also bargain for some common sense of other fruits. Let children expand their knowledge.