Mathematics teaching plan for middle class: the activity goal of understanding circle 1;
1. Know the ellipse and master its name.
2, can distinguish oval objects.
3. Graphics can be drawn on the basis of recognizing ellipses.
4. Cultivate children's habit of speaking while operating.
5. Interested in participating in math activities.
Activity preparation:
1, a picture of a giant panda and a sports picture.
2. Black markers, pencils, triangles, circles, various oval objects and objects.
3, soft (lead) line
Activity focus: Know and master the ellipse.
Activity difficulty: can distinguish oval objects.
Activity flow:
The initial part
1, magic lottery-ellipse
"Kid, guess what Teacher Zhang brought today? "Variety silk" It is not.
Always awesome, come and see!
The teacher asked, "What shape is this? (circle) is changing, make it change.
Oval, what is the picture now?
Summary: long circle, flat circle. We all call it an oval.
Two basic parts
2 communication observation comment graphics
(1) The teacher shows the other figures in turn and asks the children to tell what shapes they are.
We have learned: square, circle, triangle, this is an ellipse.
(2) Observe the oval picture.
(3) Find the same items in the same basket.
Find a home for the graphic baby (show each graphic box in turn)
-Take the oval paper cards in the basket home and put them in the box.
-The teacher confirmed it.
Step 3 draw a picture
(1) Find an ellipse in a pile of things and underline it (pencil).
(2) Teachers' itinerant guidance
(3) Draw a panda (by yourself)
What do you think this is? Do you see any difference from TV? (no.
Where is the panda? It's oval. Please color the oval part black.
Three-terminal part
Extension: Compared with a circle.
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 children in our class cooperated with me very much in this activity. The whole activity atmosphere was very good and the design link was very compact. The full preparation of sensory teaching AIDS has greatly promoted the activities in the classroom. Watching the children find out the rules in their own observation and exploration, the children themselves have learned, felt and are very happy.
Actually, it's not difficult to prepare things. The most difficult thing is to guide children and let them follow your process. I'm afraid to ask questions every time. I'm afraid of making mistakes. It's a bit ridiculous. Fortunately, the activity went smoothly, so I was relieved. I really want to change some of my teaching methods.
In addition, this activity can also be carried out in other ways, such as making patterns learned today and letting children find graphics in class. I must continue to accumulate more teaching experience. Make your teaching level more mature.
Encyclopedia: Ellipse is a kind of conic curve, that is, the section line between the cone and the plane. The circumference of an ellipse is equal to the length of a specific sine curve in a period.
Middle school mathematics teaching plan: understanding the goal of the second circle activity;
1, initially perceiving ellipses, and being able to distinguish ellipses from other figures.
2. Children can find elliptical objects.
3. Actively participate in mathematics activities and experience the fun in mathematics activities.
4. Develop children's observation and spatial imagination.
Activity preparation:
The music "Understanding Ellipse" has a number of red and yellow ellipses, a number of various colors of graphics, group operation charts, and each person has an oval and circular card.
Activity flow:
First, the initial perception:
Today we are going to visit the "Graphic Amusement Park". There are still many graphics on the road. Let's read their names as we walk. Children listen to music and review known figures while walking.
1, guide children to observe what graphics are in the "graphic amusement park"?
2. What kind of new friends have come to the "Graphic Amusement Park"?
3. Guess the name of the new friend? Walk along the "ellipse"
4. Click the "Universal Animation City" icon to let the children enjoy the animation. "The name of the children's song we just heard is" Understanding Ellipse ". Today, three friends were taken to the Oval Kingdom. Let's take a look! "
Second, cognitive understanding:
1, the teacher asked:
What shape is the magic mirror?
(2) What figure are they stepping on the chocolate fountain?
2, visual perception ellipse:
① Show the ellipse to guide children to observe its edge. (Smooth without edges and corners)
(2) Show oval teaching AIDS of different sizes and colors, all of which are oval.
3. Visually identify the ellipse:
① Show the circle and ellipse, and find that the ellipse is flatter than the circle through overlapping comparison. Hula hoop demonstration.
② By comparison, the lengths of the two center lines of an ellipse and a circle are different.
Show all the circles, triangles, squares, rectangles and ellipses of different sizes and colors, and let the children find the ellipses. And verify.
Third, the operating experience:
1, the first group of children color the ellipse: find the ellipse and paint it with the same color.
2. Complete the game in Dido Game Park 2 1 page.
Fourth, experience transfer:
Find out which things you have seen in your life are oval, such as oval eggs, mirrors, packaging boxes, biscuits and so on. "Shall we go outside and see if there is anything oval? Goodbye guest teacher! "
As the music exits.
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.
Mathematics teaching plan for middle class: understanding the purpose of circle 3 activities;
1, through the game, the child knows the circle (round face and circle).
2. Cultivate children's practical ability.
Activity preparation: round mirror, disc, washbasin; There are several circular pieces of paper, each with 1 large, medium and small circles, and each child has a set of large, medium and small circles.
Activity flow:
I. Physical demonstration
1 (showing round mirror) What is this? What shape is this mirror?
2. (Showing CD) What is this? What shape is this plate? What shape is the mouth of the plate?
Show me the washbasin.
3. Teacher: Children, many things around us are round. Think about it. What round things have you seen? (Children speak freely)
The teacher summed up: there are many round things. We can see them at home, on the road, in kindergartens and in many places.
Second, the picture demonstration
1. Show pictures: There are round pieces of paper of various colors on the black floor.
Teacher: There are many beautiful papers, including red, blue, green and yellow. Let's see what shapes they are. These circles are big, small and smallest. (The teacher points out one by one with her hand) What do you think of these circles?
2. Show pictures: There are two circles on the black floor, the big red one and the small yellow one. Q: How many circles are there? Which is bigger? The little one? (Show the smallest 1 green circle) How many circles are there now? Which is the smallest circle? Say big circle, small circle and smallest circle with children. )
Teacher: The child speaks very well. This is Dayuan, so we will call her Dayuan's mother. This is Xiao Yuan. We call her Bao. What about the smallest round? We call her the youngest round baby. (children repeat)
Teacher: Dayuan's mother spoke. She said, "Xiao Yuan, my good baby, shall we play games?" Please come to my side and stand side by side. "The small circle rolled and rolled, and stood side by side with the big circle.
Yuanyuan's mother said: The youngest Yuanyuan baby, please come to my side and stand side by side. Let a child help the little round baby roll to his mother. Now, the three hospitals are very close.
Teacher: Mother Yuan spoke again: Baby Yuan, come here a little more. Let's dance hand in hand! The youngest round baby, come and dance hand in hand with your mother! Ask your child for help. Now three circles are dancing hand in hand.
Teacher: Mama Dayuan likes Baby Dayuan very much. She added, Baby Round, come in and sit on your mother. The little round baby rolled and rolled, and it all rolled into the big circle. The round mother said, the youngest round baby, come in, too! The smallest round baby rolled and rolled, and they all rolled into big circles.
Teacher: Mother Yuan is so happy. She said, Yuan Ying, come to your mother's arms, and she will hug you to sleep. The round baby rolled into the mother's body. Little round baby spoke: the youngest round brother, please come to my arms and let me hold you to sleep. That child will help little round baby. Ok, now the big circle holds the small circle, and the small circle holds the smallest circle. Three laps is really fun.
Third, children's operation exercises.
Each child has a set of learning tools and four colored circles of different sizes.
Teacher: Children, how many circles do you have? Would you please play games with them? Children play together by themselves.
Middle school mathematics teaching plan: understanding the goal of the fourth circle activity
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.
Middle school mathematics teaching plan: understanding the goal of the fifth circle activity
1, can name an ellipse and perceive its basic features in various ways.
2. You can find elliptical objects from your life.
Activities to be prepared
Experience preparation: Teachers and children collect all kinds of graphic objects in life.
Material preparation: there are' various graphics' display boards, teaching courseware, a round and oval card, a small straw and a splint.
Activity process
First of all, in the form of visiting the "graphic kingdom", review the graphics that have been learned.
Teacher: Today we came to the kingdom of graphics. Let's have a look. What graphics are there?
Second, say the name of the ellipse and initially perceive the characteristics of the ellipse.
Teacher: I have a new friend in the graphic kingdom. Look! What kind of number is this? (Oval) What does it look like?
We also invited Yuan Yuan, its good friend, to let the children touch the edges of the circle and ellipse with their hands and tell us what you found.
Thirdly, through comparison, we can further perceive the characteristics of ellipses.
1. By comparing these two graphs, it is found that an ellipse is flatter than a circle.
Teacher: What's the difference between children folding round and oval cards?
Compared with children's operation, it is found that the ellipse is flatter than the circle.
2. By measuring the center line crease of circle and ellipse, it is found that the center line crease length of circle is the same, but the center line crease length of ellipse is different.
(1) Teacher: We measured the red creases and black creases of ellipses and circles with straws. What did we find?
The teacher put forward the measurement requirements: first measure the red line and black line of the circle, and then measure the ellipse.
(2) Children's hands-on operation and teachers' individual guidance.
(3) Post-operative question: What did you find when measuring round and oval creases?
(4) Teacher's summary: The crease lengths of the two center lines of the circle are equal;
The two center lines of an ellipse have different crease lengths (one crease is long and the other crease is short).
Summarize the main characteristics of an ellipse: there are no corners, only sides, and the arc is round and flat.
Fourth, look for the ellipse in life and consolidate its characteristics.
1, find the oval object from the courseware.
Teacher: Xiaohong's family also hides a lot of oval things. Let's go find them!
2. Look for elliptical objects from all kinds of life.
Teacher: Please look for "something that looks like an oval" on the desktop and talk to your partner and visiting teacher when you find it.
Teacher: Let's go outside the classroom and continue to look for something that looks like an oval!
Activity expansion
1, regional activities:
Math area: find the ellipse (provide a geometric circular decorative card for children to find the ellipse and decorate it)
Art area: oval painting (providing basic oval patterns for children to paint freely)
Puzzle area: graphic chess (let children know all kinds of graphics by playing graphic chess)
2, family activities: go home and continue to look for oval items in life.
Middle school mathematics teaching plan: understanding the goal of the sixth circle activity;
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.
Mathematics teaching plan for middle class: Understanding Circle 7 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.