Newton Story|Tangerines are ripe
Children came back to school in September, they were surprised to see that all the tangerines on the tree had grown up when they were walking on the playground. They were so excited and asked the teacher, "Can we pick them now? Are they ready to eat?”
Teacher: let's try one!
So they picked an tangerine and brought it back to the class. After peeling it, they found that the tangerine inside was white, and it tasted very astringent and sour.
Child: this tangerine is sour and bitter.
Child: the tangerines are not ripe, so they will be very sour.
Child: tangerines are green now. When they turn yellow, they will be ripe. We can pick them and eat them······
More than a month later, the children found that some of the tangerines had turned yellow and some had gone bad. The children said anxiously: "the tangerine is ripe, the birds have come to eat, it’s time to pick them!"
The topic that children are talking about recently is always around the tangerine: "Wow, there are a lot of tangerines on the tree." "Some are big, some are small." "Some have turned yellow, some have turned half yellow and half green." Teachers immediately excavated the educational value behind the children's topic: what's the difference in the size of tangerines? Why are some half yellow and half green? How to pick tangerines on a high place?
After a lively discussion, children were divided into two groups and picked tangerines happily with baskets.
The first group quickly picked a lot, and there were still some tangerines on high positions. They stood under the tree and looked up. They reached for those tangerines, but couldn't get them. They stood on tiptoe and jumped up, but still couldn't get them.
Looking at the other group, their baskets are already full of tangerines.
Teacher: what methods did you use to pick tangerines?
Child a: jump.
Teacher: why do you jump?
Child a: because there is no ladder and no stool.
Child B: I shake the tree.
Teacher: how do you think of this method?
Child C: No, it will hurt the tree.
Child D: I got the tangerine by climbing up the tree. But I should pay attention to safety and be careful not to climb too high.
Child E: I worked with XX. I pulled the branch down so XX can pick it.
When picking tangerines for the first time, children only picked a small part of them. There were still many tangerines that could not be picked on the high position.
Eleven: "get a ladder or a chair."
Enid: "the higher table is OK."
Jolin: "knock it down with a long bamboo pole."
tangerines grow high on the trees. It's not easy to pick them off. How can we do? Children thought they could use the ladder, trampoline, chair to help. In the process, they found objects of appropriate height through visual observation and practice to assist them in picking tangerines.
An tangerine tree brings children many surprises and to be found, it was lunch time when they went back to class. Today's fruit was orange. Children looked at the picked tangerines and look at the oranges, said the children: "I found that they look very similar." Answered the teacher: "well, the appearance looks similar. You can learn the difference between them in detail." Thus, a new round of discussion began.
Children observed and compared the tangerines with the oranges they ate today. Some children sniffed them and some touched them with their hands
A dialogue between children:
Tao Tao: "I found that they are not the same shape. One is a flat circle, the other is an ellipse."
Zhi Ling: "the peel are not the same, one with tougher skin, while another is smooth."
Kai Xin: "we can see more clearly with the magnifying glass."
Yi Yi: “I feel the tangerine skin is soft,and orange skin is hard."
Zheng Zheng: "I don't know how do they taste?"
The observation and comparison of "tangerine" and "orange" not only consolidate their knowledge of tangerine, but also further understand that through "comparative observation", they can find out the connections and differences from similar objects..
Before eating, you should peel it first. Children who couldn't wait to peel it. But soon, a problem appears... "This tangerine is so hard to peel?" In what way can it be easily peeled off? Children began to think and try.
Da Bao: "it’s skin is very thick, it needs to be very hard."
Yi Yi: "knead it and it become soft, then it will be easily peeled."
Xiu Ya: "I cut it with a knife."
Children succeed! Everyone is enjoying the orange!
Yi Yi: tangerine tastes sour and sweet.
Yi Yi: oranges are also sweet and sour!
Xiu Ya: mine is a little bitter.
Xiao Bao: what is this white stuff?
Knowledge about tangerine pith:
This white silk thing is actually the meridians in the tangerine peel. It tastes a little bitter, but has high nutritional value. It is good for our health. For example, sometimes we eat too much, we can eat some tangerine pith to help digestion. In addition, in autumn and winter, the weather is dry. We can make some tangerine peel (with tangerine pith) tea, and drink it to generate fluid and relieve cough!
With the children's unremitting efforts, the tangerines are taken off their "autumn clothes.". What can be done with so many peels?
"My grandmother said we can soak the peel in water."
"This peel is very fragrant. I want to take it home."
"I can make sandwiches." "I can make soup."
"Dried in the sun can be used to make tea."
Let's dry these tangerine peels in the sun and discover the benefits of digging them!
In the morning, the child on duty was cleaning up oranges. Several children pointed to one of them and said excitedly, "this one is so big!" "Some are big, some are small." "Are these tangerines the same weight?" the teacher asked "Not the same weight." "The bigger ones must be heavier and the smaller ones lighter." Are they right?
Children selected five tangerines of different sizes and numbered each one. In order to verify their ideas, they found the balance scale for help.
Children got different results by weighing five oranges of different sizes. They peeled the tangerines and counted the number of tangerine segments. It turns out that the big oranges are not necessarily the heaviest, and the tangerine with more segments are not necessarily the largest. Therefore, they have a new perception of comparing with the balance scale.
By our side
There's a group of people,
They accompany us,
Protect our health,
Let's share the fresh fruits with them!
Good teacher-children relationship is the key to the effectiveness of education. In the series activity of exploring the tangerine tree, teachers didn’t impart "knowledge" to children, and are not give or replace children. Instead, they are allowed to try according to their own ideas, so that they can gain direct experience in the process of exploration, and restructure their cognitive structure under the teacher’s guidance.
Children are full of curiosity about everything. A leaf or an insect may bring them infinite imagination and discovery. Through first hand experience, children learn to observe, discover and explore. Starting from the details of life, and get close contact with nature, children’s senses and emotions will be fully released, their curiosity and desire to explore nature are implanted.
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