Kindergarten junior high school mathematics teaching plan "ellipse" 1 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 Activity Goal of the Mathematics Teaching Plan "Ellipse 2" in the 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.
The third activity goal of "ellipse" of mathematics teaching plan in kindergarten middle class;
1. Develop visual acuity and judgment.
2. Learn to correctly perceive the ellipse in comparison with the circle.
According to its characteristics, ellipses can be found in many figures.
4. Guide children to actively interact with materials and experience the fun of mathematics activities.
Activity content:
Interesting oval.
Activity preparation:
1. A set of square, rectangle, triangle and circle cards.
2. A courseware (a picture of a gift from Teacher Qiu).
3. There is a set of round and oval cards.
4. Operate paper and oil pastels.
5. Physical objects: boxes, plates, leaves, apples, lemons, eggs, baskets, etc.
Course record:
I. Import activities
Review the graphics you already know.
Teacher: "Look, who's coming?" (Showing a picture of Miss Qiu's gift).
Teenager: "Miss Qiu."
Teacher: "Autumn has come. Teacher Qiu gave us many gifts. Let's see what presents we have together.
Teenager: "There are cookies."
Teacher: "What shapes are these cookies?
Teenager: "This is a triangular strawberry biscuit."
Yang: "There are square apple cookies."
Yang: "And rectangular banana cookies."
Yang: "And round orange cookies."
Comments: Let the children review the graphics they already know and prepare for learning and understanding the ellipse through the gift given by Mr. Qiu.
Second, know the ellipse.
Teacher: Please take out two cards (round and oval) in your hand and find out which one is oblong and which one is oblate.
Yang: The circle that is longer than the circle is oval.
Teacher: We call this long and flat circle an ellipse.
Comments: According to the teacher's tips, children can compare circles and ellipses to find long and flat circles.
Third, compare round and oval.
(1) Compare the same points. Let the children touch the edges of circles and ellipses, guide them to observe and find the same point: they have no corners.
(2) Distinguish differences. Put the centers of a circle and an ellipse together, let the children compare and observe, and then let the children fold their two figures in half from the center, up, down, left and right, and a "ten" fold appears on each paper. What's the difference between the four folds of a circle and an ellipse?
Comments: Through operation and exploration, let children actively learn to find out the similarities and differences between circle and ellipse, create a relaxed and happy psychological atmosphere for them, and create conditions for children to play their subjectivity.
Fourth, find an ellipse.
Show boxes, plates, leaves, apples, lemons, eggs, baskets, cantaloupes, etc.
Teacher: The naughty oval wants to play hide-and-seek with us. Let's see what looks like an oval.
Young man: Eggs are oval.
Yang: The front of the box is oval.
Yang: The leaves are oval.
Yang: The bottom of the basket is oval.
Yang: Hami melon is oval.
Yang: The plates are oval, too.
Comments: oval. By displaying objects, children's interest in learning is further stimulated, and children can communicate freely with their peers in a relaxed atmosphere, which not only exercises their oral expression ability, but also enhances their confidence in speaking boldly.
Fourth, color the oval baby.
Guide children to find the ellipse in the picture composed of geometric figures and color it.
Comments: The children have a high interest in operation, their initiative and enthusiasm have been fully mobilized, and they have gained learning experience through exploration.
Regional corner activity: put squares, rectangles, triangles, circles and ellipses in the science corner, and let children combine various objects with graphics.
Teachers' self-evaluation: The whole activity has a clear goal, a clear level, interlocking and advancing layer by layer, achieving the expected goal and effect.
Director's comment: Children distinguish the difference between a circle and an ellipse through observation, comparison and analysis, and know the ellipse. They can correctly grasp the names of circles and ellipses and understand the characteristics of ellipses. In the operation activities, children can operate according to the teacher's requirements and have good operating habits. In the whole activity, the children's routines are also very good, and they can raise their hands to answer questions actively, which makes them interested in the activity. Teachers inspire and guide children to fully mobilize their enthusiasm for learning, and use "games" throughout the activities, so that children can gain knowledge and experience in playing, which truly reflects the fun of playing middle school.
Activity reflection
The goal of this activity is to perceive the difference between a circle and an ellipse through operation and understand the main characteristics of the ellipse. Improve observation ability and comparison ability.
Guide the children to say the oval objects they have seen in their daily lives. Find out what other oval objects you have seen in classrooms and kindergartens, record them in groups and share them with your peers. Children get not only circles and ellipses in their activities, but also how to tell the difference between them.
Design intent
Mathematics is an abstract and thinking subject, and games are the best way for children to learn. In this math activity, the teaching objectives and contents are skillfully integrated into it, and children are boldly tried to actively participate in the operation, further understand the ellipse and cultivate their divergent thinking. Let children fully experience the fun of activities and truly "play middle school" and "play middle school". Cultivate children's good operating habits and stimulate their enthusiasm for participating in mathematics activities.
Encyclopedia: An ellipse is the trajectory of a moving point P. The sum of the distances from the moving point P to the fixed point F 1 and F2 in a plane is equal to a constant (greater than |F 1F2|), and F 1 and F2 are called the two focuses of the ellipse. The mathematical expression is | pf1|+pf2 | = 2a (2a > | f1F2 |).
Activity goal of "ellipse" 4 in kindergarten middle class teaching plan:
1, develop visual perception and judgment, and find the ellipse in life.
2. Learn to correctly perceive the ellipse in comparison with the circle.
3. According to its characteristics, find out ellipses in many figures and learn to know ellipses.
4, like math activities, willing to participate in various arithmetic games, and cultivate rebellious thinking.
5. Experience the fun of math group games.
Activity preparation:
A set of 1, square, rectangle, triangle, circle and ellipse cards.
2. Various graphics cards.
3. Disks, stones, sugar, bread, leaves, apples and eggs.
4. Music.
Highlights and difficulties of the activity:
Focus of activities:
Know the ellipse.
Activity difficulty:
Find the ellipse in life and use it to create and operate.
Activity flow:
First, the finger game "Finger Change" introduces the theme.
1. Play the game of changing fingers with children.
2. Magic with roots (all kinds of oval things)
3. Review the known figures (square, rectangle, triangle, circle).
Teacher: There is a new graphic baby in our class today. who is it? Do you want to meet new friends?
Let's work together, shall we? Gollum changed, and the oval baby came out. Hello, children. I am an oval baby. Nice to meet you. Baby oval is very polite. Should we say hello to it, too
Second, understand the characteristics of the ellipse.
1, Teacher: I have two figures here, one is round and the other is oval. What's the difference between them? Find out which is a long circle and which is a flat circle. A circle is a little round, and an ellipse is a little longer than a circle.
Teacher: We call this long and flat circle an ellipse.
2. Let the children tell us what is oval in life.
Third, look for ellipses.
1, show the prepared props, and here is an oval, let's see who finds it first.
Teacher: The naughty oval wants to play hide-and-seek with us. Let's see what looks like an oval.
Show plates, leaves, apples, eggs, sugar, bread, stones, etc.
Fourth, children's confusion and comments.
1, the teacher demonstrated on the blackboard with various graphic stick figures.
2. Combine the prepared figures into a picture.
3, children's operation teacher guidance.
4. Show children's works and encourage them.
Teaching reflection:
This activity is a math activity. First of all, show different graphics to let children know the characteristics of graphics. The whole classroom has clear thinking, complete design and active atmosphere. Perceive the difference between circle and ellipse, and understand the main characteristics of ellipse. Improve observation ability and comparison ability. Guide the children to say the oval objects they have seen in their daily lives. Children get not only circles and ellipses in their activities, but also how to tell the difference between them. According to the teacher's guidance, children can boldly imagine and name the corresponding graphics, find different graphics in different patterns, and then make puzzles by themselves to master the characteristics of graphics.
Disadvantages:
Language is not friendly enough, lack of affinity, children's hands-on operation and pasting time is long, lack of language to encourage children, and it is helpless to see that children can't finish their works within the specified time, lack of guidance for individual children, and the language is not refined. There are many places that need to be improved and more research is needed.