I. Activity objectives
1. Understand the close relationship between rich marine treasures and people's lives.
2, know that water is an important resource for human survival, and sprout the consciousness of protecting the marine environment.
Second, the activity preparation
Globe, wall chart "useful marine treasure", making multimedia courseware, physical objects (all kinds of seafood, salt, shells, pearls, etc. )
Third, the activity process
(1) What do you know about seafood?
The teacher showed all kinds of prepared seafood to arouse children's interest in the ocean. (cuttlefish, kelp, shrimp, flat fish, gun crab)
1. The teacher brought you a lot of delicious food today. I don't know if you have seen it in your daily life. What are the differences? Now let's have a look.
Do you know where these things come from? For example, watermelons are picked from the ground, apples are picked from trees, and river shrimps are fished from the river.
Key points: Let children distinguish between the sea and rivers, and distinguish between seafood and fresh water products.
3. Teacher's summary: These are all foods fished from the sea. What do you think of eating these things?
You can let several children lick the taste of these seafood with their tongues and come to the conclusion that the taste of seafood is salty.
(2) Understand why seafood is salty?
1, the sea is really capable, bringing us so much delicious food! Do you know what makes these foods salty? Children give full play to their imagination to discuss.
2. The teacher summed up the results of the children's discussion and showed the white salt. What do you think this is? What's that smell? Do you know how salt comes from?
3. The teacher plays pictures of workers drying salt, and the children know the origin of salt.
Teacher's summary: The water in the sea contains a lot of salt, so some aquatic products in the sea have also become salty. Add more food and different flavors to our table.
5. Play pictures of all kinds of seafood.
(3) Learn more about the treasures in the ocean.
1. We know that there are delicious seafood in the ocean. Do you know what treasures are in the ocean?
2. The teacher made a summary after the children's discussion:
(1) There are rich mineral deposits on the seabed, such as oil, which are indispensable for our production and life (there are also pictures of offshore oil wells);
(2) There are beautiful corals and pearls on the seabed, which can beautify our lives (and play pictures of their handicrafts at the same time);
(3) The impact of seawater can be used to generate electricity, that is, hydroelectric power generation (while playing pictures of power plants);
(4) Seawater can help people carry heavy objects (and play pictures of big ships at the same time);
(4) Looking for the ocean and protecting it.
1, summary of discussion between teachers and students: the beauty of the ocean and the treasure it brings to mankind.
Do you know how big the oceans are on the earth?
Play the map of the world and let the children find out where the oceans on the earth are. Understand that the ocean is very big.
The ocean on the map is blue and beautiful. But now the color of Mother Sea has changed. The teacher played pictures of the polluted sea and the collective death of fish on the beach.
Because we humans constantly produce and throw waste into the sea, the sea is polluted, so the lives of all kinds of animals and creatures living there are threatened. So what should we do?
4. Teacher's summary: The ocean is beautiful and has made great contributions to mankind. It is a good friend of mankind and should be well protected.
Fourth, the end of the activity
1, evaluation
2. Summary
Activity reflection:
There are so many treasures in the ocean, but if we exploit, fish and salvage endlessly, there will be fewer and fewer treasures one day, so the children spread their wings of invention, and I gave the task of inventing new energy to the children who love thinking. I hope these small inventors can grow up as soon as possible and invent more useful things to serve mankind. Children, you are the teacher's most precious wealth!
The area of the ocean on the earth is so large, accounting for three-quarters of the total area of the earth. All the blue places on the earth are oceans. There are many treasures hidden in the ocean that are useful to people's lives and closely related to human life. Today, we unveil the mystery of the ocean, go to the ocean world to explore useful marine treasures and understand the close relationship between the ocean and life.
When the wall chart is slowly opened, the children are first attracted by the beautiful scenery and lovely marine life in the sea world. I affirmed their view in time that the beauty of the marine world is a useful marine treasure. With my affirmation, the children's topics began to expand. Lovely marine fish are beautiful and delicious, enchanting seaweed is beautiful and delicious, and even those dead shells and corals are precious materials for making handicrafts and treasures of the ocean. According to the order arranged on the wall chart, the children saw white salt, black oil and blue sea water ... these simple things bring us rich wealth and wealth. It turns out that everything in the ocean is a treasure, and they are closely related to our human life.