Summary of a lesson on the surrounding world in the senior group. Why do leaves turn yellow in autumn?
Cognitive and research activities in the senior group on the autumn theme.
Abstract Author : Pilipenko Zoya Alekseevna, teacher of MKDOU combined type kindergarten No. 432, Novosibirsk
Abstract on educational and research activities in the senior group “Why do the leaves turn yellow in autumn?”
Goal: to summarize children’s knowledge about autumn changes in nature. Objectives: Educational:
- consolidate children’s knowledge about the main signs of autumn;
- explore the structure of the leaf; — teach children to compare, reason, answer questions; - consolidate knowledge about familiar trees, the meaning of leaves for a tree; Educational:
- to instill in children a caring attitude towards nature;
- cultivate curiosity; Developmental:
- expand children's vocabulary (petiole, chlorophyll);
— develop children’s cognitive activity, observation, ability to draw conclusions; - develop attention and coherent speech. Preliminary work: While walking, watch the leaves fall from the trees. Please note that all the leaves are different colors and different shapes. Collection of foxes of different shapes and colors. Games: “Whose branch are the children from?”, “Leaf fall”, “Autumn signs”. Equipment: Magnifiers;
White paper; green leaves and leaves of other colors, dry leaves. Progress of the lesson:
The lesson begins with a morning greeting circle.
Naughty little bell, form a circle with the guys.
The guys gathered in a circle, on the left is a friend and on the right is a friend, together we will hold hands and smile at each other. Educator : What a joyful and friendly morning we had today. It's so good to have friends. Have a seat guys. Educator: Guys, guess the riddle: What kind of sorceress took the paint? She painted the leaves, took them off the branches, hid the midges to sleep until spring, What kind of sorceress, you tell me... Children: Autumn Teacher : Well done, right. How did you guess? Children :...(children's answers)... Educator: Guys, everything you just named are signs of autumn. What other signs of autumn do you know? Children: ...... Educator : Tell me, please, what is the name of the phenomenon when leaves fall from trees? Children : Leaf fall. Educator: Guys, why do you think leaves fall from trees, why do they change color? Children: ... (children's answers: because it's autumn) ... Educator : To figure this out, I invite you guys to our scientific laboratory. But you and I will not go there, but will fly like autumn leaves. Physical education Autumn leaves began to spin. A cheerful wind rustled above them, they flew merrily and sat down on the ground. The wind came quietly again and suddenly picked up beautiful leaves. They flew merrily and sat down on the ground. (Repeat after the teacher: spin around, run on their toes, swing their hands, sit down). Educator: Come on in, guys, take your seats at the table. Experience No. 1 . Let's examine a leaf of a tree Educator: Guys, let's look at a leaf of a tree. The leaf has a “stick”, it is called a petiole. With its help, a leaf is connected to a tree branch. Now look at the leaf itself. Thin tubes extend from the petiole - these are veins through which the leaf receives moisture. There are many of them on the leaf, some veins are thicker and we see them with the naked eye, others are thinner - we can see them under a magnifying glass. Take magnifying glasses and look at the leaves. Experiment No. 2. Why leaves change color Educator: And now guys, we will find out why the leaves change color and fall off. Please take a green maple leaf, tear it, crumple it and try to draw with it on a white sheet of paper. Let's see what happens. Children: ...my leaf (of paper) turned green; he draws... Educator: Yes, guys, a green maple leaf leaves a green “trace”, since the green leaf contains a special substance called chlorophyll. Let's repeat this word together. Children with a teacher: chlorophyll Teacher: Now, guys, take the “colored” leaves and try to do the same. Let's see what happens. Children: I have nothing; mine crumbled, broke... Educator: Why do you think this happened? Children : because there is no chlorophyll Educator: Yes, guys, there is no chlorophyll in colored dry leaves. Chlorophyll is produced in leaves under sunlight. What happens to the sun in autumn? Children : it shines less, does not heat well... Educator: That's right, guys. In the fall, the sun becomes less and less, the chlorophyll in the leaves also becomes less and the leaves become multi-colored, dry out and fall off. Summary of the lesson: - Guys, what did we talk about today? - What did we explore? — What new words did you meet? — Why do the leaves change color and fall off? -What did you like best today?
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