1 the activity goal of the large class mathematics teaching plan
1, learn the addition and subtraction of 8, and you can correctly list the addition and subtraction formulas of 8.
2. Try to put different addition and subtraction formulas on the sign board with three numbers, and feel the interchange relationship between additive commutative law and subtraction.
3. Think positively and explore the different positions of numbers in the formula.
4. Cultivate children's good operating habits of cooperative and orderly operation.
5. Let children learn simple math problems.
Activities to be prepared
1, experience preparation: children have learned the addition and subtraction of numbers within 7 and the composition of 8.
2, material preparation:
-Teaching aid: symbol base plate (the base plate is divided into four squares, two squares are written with plus sign and equal sign, the other two squares are written with minus sign and equal sign, and there is room for writing numbers in the middle of symbols), with one number 8, one number 3 and one number 5, and one pen.
-Learning tools: children's books (P 14, 15, 16). Every child has a pen.
Activity process
1, strange key card.
Teacher: Dad took Huahua to other cities to play. When they were staying in a hotel, the waiter gave them a question. Let's go and have a look.
-Teacher (showing the symbol bottom plate and the numbers 8, 3 and 5): The waiter said that only by sticking four force reduction formulas on the key card with these three numbers can the key card enter the room smoothly. Would you like to have a try?
-The kids think. Let a single child demonstrate and say what formula to put, and check collectively. Encourage children to put four different addition and subtraction formulas and three numbers together.
2. Children's operation activities. (children's book P 14)
-look at the formula of house characteristics. Observe eight small houses, fill in the numbers next to the addition and subtraction symbols according to the colors of the houses, and list four different addition and subtraction formulas.
Look at the numbers on the left. Please list four different formulas.
Observe three groups of vegetables and think about it: which two groups of vegetables are the same as the picture below, please draw a line to connect them.
-Lead the children to open pages 15 and 16 respectively, and guide them to practice the second, third and fourth groups of addition and subtraction in 8. (You can also practice in groups, Ben; Tongue movement only completes one page of practice, and other exercises are carried out in daily routines or areas. )
Activity evaluation
-Ask children to introduce operational activities.
-guide children to observe the similarities and differences between the two addition formulas and the two subtraction formulas, and find that the numbers of the two addition formulas are the same, but the positions of the numbers on both sides of the plus sign are different; The two subtraction formulas are that the positions of the numbers on both sides of the equal sign are reversed.
-Let children observe their own recorded results to see if they have the same findings. Praise the children who correctly list four different addition and subtraction formulas.
Activity reflection:
Give children enough opportunities to communicate with their peers and solve problems. Whenever children encounter difficulties, I will let them find their own way first and try boldly. After the activity, let the children operate freely and make records. In the whole activity, we try our best to embody the harmonious teacher-student relationship with children as the main body and teachers as the leading factor. Most children can take the initiative to learn, enjoy learning, and achieve the expected goals.
The second part of the large class mathematics teaching plan activity goal:
1. Learn to sort objects according to their thickness, height and thickness within 7.
2. Develop the reversibility, mobility and duality of children's thinking.
3. Cultivate children's good habit of thinking and learning.
Activity preparation:
7 pictures of books with different thicknesses; Seven pictures of trunks of the same height and different thicknesses.
Activity flow:
First, the beginning part
Teacher, here are some of your good friends. You want to know who they are?
Second, the basic part
1, thickness sort
(Show 7 pictures with different thicknesses). Do you know who they are?
But they don't have a name, and they are very sad. Should we give them a name? Let the children order from thin to thick >
Which book is the thinnest? Call it the smallest.
We sent our youngest son home. Who is the thinnest one left? Then there is the old six.
Look at the rest. Who is the thinnest?
Who should be next?
By analogy, under the guidance of teachers, children can find fast and accurate methods.
They will come out to play again, this time they are the boss (let the children operate by themselves, and choose the thickest method every time in order of thickness)
2. Thickness classification
I feel very tired when these books come out to play. At this time, they found some stumps. They decided to sit on the stump for a while and have a rest, but what should they do?
They want to arrange these stumps in order from thin to thick. How come?
Guide the children to use the previous methods and find the thinnest method to sort in turn.
At this time, they want to change their positions and arrange these stumps from thick to thin. How do they arrange it?
Let several children manipulate and sort in the same way.
Highly sorted:
They had a good time. Do you want to go out to play? But we have to line up.
Divide the class into six groups according to the number of children, from high to short and from short to high.
At the end:
Line up and take the children out of the train.
Large class math teaching plan 3 1. The game "Driving a Train", review the subtraction within 9.
(Show formula card) Review the addition and subtraction of 9 in turn.
Second, learn the subtraction of 9.
1, guide the children to look at the pictures carefully and decompose them.
Q: How many children are there in the picture? Are they the same? What is the difference? Guide children to say that gender, clothing and sports are different.
2. Guide children to write subtraction application questions according to the different characteristics of objects.
1) Children communicate with each other.
Guide children to observe from different characteristics and different sports, and remind them to divide the total into two parts. How to ask questions? (Let the children talk to each other)
2) Centralized communication.
(1) The teacher compiles subtraction application questions according to the child's gender, and then asks the child to calculate in columns.
(2) Who can make up the application for restoration according to different clothes? Please show it to a child with strong ability.
Fill in the application questions. After making up the application questions, the children collectively list the formulas, and then talk about the practical significance of the numbers and symbols in the formulas together.
③ According to different sports of children, use the same method to compile subtraction application questions. Why do you ask how much is left?
3. Lead the children to read 8 subtraction formulas of 9.
4. Guide children to communicate, talk about the characteristics of subtraction application problems, and observe the relationship between calculation formula and split combination formula.
Third, children's homework.
1, see the diagram column formula. (Show subtraction graphs of different expressions)
Guide the children to review the questions and remind them that the parts removed should also be in the total.
2. Listen to the oral newspaper and write the formula.
Fourth, show and evaluate some children's works.
5. After tidying up the utensils, finish this activity.