The goal of the activity "Understanding Ellipse" 1 in the math teaching plan of kindergarten middle class;
1. Can name an ellipse and perceive the difference between an ellipse and a circle in various ways.
2. You can find elliptical objects from your life.
Activity preparation:
1. Experience preparation: Use walking time to guide children to observe and find oval objects in the surrounding environment, such as petals and leaves.
2. Material preparation: courseware; Two watermelons; Some oval and round iron rings; Some oval and round snowflakes; Some circular and oval hula hoops; Many round and oval tires; Watercolor pen, oil pastel, etc.
Activity guide:
First, Pig Bajie likes to eat watermelon and found the difference between oval and round.
1. Guide: Look who's here, children? Yes, the pig likes watermelons very much, so the little monkey helped him find two watermelons. (Showing two watermelons) Are these two watermelons the same? Why?
2. Let the children tell their differences by looking, touching and comparing.
3. Summary: Similarity: Both watermelons are round and have no horns.
Difference: Watermelon is round, while watermelon is oval.
Second, show the courseware and communicate the difference between oval objects and round objects in life.
1. Introduction: Children, let's look at the difference between oval objects and round objects in life.
2. Guide children to talk about what other things in life are oval.
3. Guide children to compare the difference between ellipse and circle again.
Guide: What's the difference between an ellipse and a circle?
4. Show two circular iron rings with the same size, lengthen one of them into an ellipse, and stack it with the other iron ring to guide children to observe and find that the two ends of the ellipse are longer than the circle.
Third, the game of "Who can run fast".
1. Guide the children to compare who runs faster than the round wheel car and the elliptical wheel car.
The first group: round snowflakes and oval snowflakes.
The second group: round hula hoop and deformed oval hula hoop.
The third group: round tires and deformed oval tires.
The fourth group: circular iron ring and oval iron ring.
Children are free to try, and teachers can observe and guide.
3. Summary: Round wheels run fast, while oval wheels run slowly.
Activity expansion:
1. Ask the children to look for oval objects in class and tell your partner: What do you find that looks like an oval object?
2. Regional activities: (1) Put all kinds of oval cardboard in the math area, guide the children to draw the oval, color the oval, and cut the oval into pieces for jigsaw puzzles. (2) Put an oval mirror in the science area to guide children to aim the mirror at the sun and find the shape of the light spot. (3) Put graphic chess in the puzzle area to make children more familiar with various graphics by playing graphic chess.
2. Family education: Encourage children to go home and continue to look for oval or oval-like objects in their lives.
Kindergarten junior high school mathematics teaching plan "Understanding Ellipse" 2 Activity Name: Understanding Ellipse
Activity goal: to know the ellipse and perceive its basic characteristics.
Activity preparation:
Teaching aid: a circle, an ellipse and a piece of paper.
Learning tools: a circle and ellipse with the same size as a human hand, a piece of paper (the length is the same as the diameter of the circle); The first and second groups, coloring the ellipse; Groups 3 and 4, mark the most points with "*". Groups 5 and 6: Look at the symbols and fill in the dots.
Activity flow:
I. Group activities
1, know the ellipse.
Show the oval shape. "Is it round?" (No) "Where do you see that it is not round?" "Let's compare." Guide children to compare the two figures in front of each other and make sure that the ellipse is longer than the circle. "So what is the name of this figure?" (Ellipse) "Besides being longer than a circle, what's the difference between an ellipse and a circle?" (Guide children to fold the circle in half from left to right, then fold it up and down, and measure the two folds with a piece of paper to verify that the two folds of the circle are the same length; Then guide the children to fold the ellipse in half up and down, and measure the crease again to verify that the crease of the ellipse is not the same length.
2. Summarize the characteristics of ellipse.
"The two ends of the ellipse are longer than the circle, and the folds folded up and down and left and right are different in length."
3. Name the oval objects in daily life.
"What other oval things can you see at home and kindergarten?"
Second, group activities.
1, the first group and the second group, color the ellipse.
"Find the ellipse and paint it with the same color."
2. In the third and fourth groups, mark the most ideas with *.
3. Groups 5 and 6, look at the symbols and fill in the dots.
Three. Activity evaluation
Show a single child's homework to color an ellipse.
The third activity goal of "understanding ellipse" in mathematics teaching plan of kindergarten middle class
1. Preliminary understanding of ellipse.
2. The basic features of an ellipse can be expressed in words.
3. Like math activities, willing to participate in all kinds of arithmetic games, and cultivate rebellious thinking.
4. Interested in participating in math activities.
Activities to be prepared
Material preparation: PPT, mother bear, sister bear, elliptical mirror picture, circle, operation book.
Activity process
1. Introduce the activity in the form of storytelling.
Lead: "One day, Mother Bear and Sister Bear went shopping together. They saw many mirrors hanging in a shop and went in. Sister Bear took Mother Bear to a mirror and asked, "Mom, this mirror is really strange! " "
2. Guide children to understand the basic characteristics of the ellipse.
(1) Show the pictures of the elliptical mirror, and let the children play freely.
(2) Show the circle and let the children feel the difference between ellipse and circle.
3. Summarize the characteristics of the ellipse, focusing on guiding children to express the basic characteristics of the ellipse in language.
(1) The two ends of an ellipse are longer than a circle.
(2) Up and down folding and left and right folding are not the same length.
4. Guide children to say oval objects in daily life.
5. Distribute the operation manual to explore the operation for children:
(1) guides color classification.
(2) Guide children to sort by size.
(3) Help children to further understand the ellipse in the form of games.
6. Children's operation, teachers patrol and guide and focus on guiding children with weak operational ability.
7. The teacher evaluated the operation of this activity.
Teaching reflection:
The activity class of knowing the ellipse is over. I feel that the child has at least learned and achieved his goal. My activity is to let children learn to know graphics in a relaxed environment. I made full preparations before class and arranged them according to the characteristics of the children in our class. The children in our class are very lively and can't use boring teaching mode. I want children to learn and explore in the mode of static and dynamic alternation. The whole design process of this activity is good, but there are some mistakes when asking questions to children, and the questions are always inaccurate. Some questions are too adult, which is my shortcoming. There are also problems that sometimes appear in the course of class, and the teacher is not sure enough. This is where I should pay attention.