"Where are the seven little monkeys?" Large class math teaching plan 1 activity goal;
1, according to different pictures, list the corresponding formulas, so as to perceive the quantitative relationship expressed by the addition formula.
2, understand the exchange law, know how to use the exchange law to list another formula.
3. Actively explore mathematical activities and be willing to tell the results of exploration.
Activity preparation:
1, teaching aid: a picture of the castle (divided into three layers, each layer has three pictures representing plus 7, covered with paper) and a piece of fruit.
2. Learning tools: one for castle map and one for fruit.
Activity focus: Look at the picture and learn the addition of 7.
Activity difficulty: Can tell according to different pictures, and list the corresponding formulas.
Activity flow:
First, driving a train: review the composition of 7
Teacher: The king of Castle Kingdom invited us to visit his country. Would you like to? Then let's get on the No.7 bus (show the number 7) and start.
Teacher: Hey, my train leaves at X (1), and yours at X?
Yang: Hey, my train X( 1) leaves, and my train X(6) leaves.
Second, situational awareness-going to the castle: the addition of picture learning 7
1, Teacher: Look, the castle kingdom has arrived. The king said that he had hidden many problems in the castle.
If you want to test our children, let's go to this castle first, shall we?
Teacher: Let's go to the first floor of the castle. There are three paintings on this floor. Who wants to talk?
The king wants to test us. Who can list a formula after reading these three pictures? You can go to the second and third floors after answering.
3, children's operation
Teacher: Then let's all go to a castle to answer questions. For the slow one, you can only answer on the first floor. You can go to the second floor and the third floor if you are fast. Don't forget to write your answer clearly.
4. Summary:
Teacher: What problem did you encounter just now? (Express three pictures in three sentences) What is your answer? (children's column formula) teacher record
Ask the children to observe these formulas. "They have a little secret. Who can find it first? " ? "
Teacher's summary: The numbers of these formulas are all 7 and they are all addition, so these six formulas are all addition formulas of 7.
Teacher: Like 1+6=7 and 6+ 1=7, the numbers are the same, but the numbers are the same, so when we see 1+6=7, we immediately think of 6+ 1=7. We call it the question of friends, and we also see that 2+5 =. see ...
Third, internalized migration-game: buying fruit.
1, Teacher: The King of Castle State praised our cleverness and gave each of us a fruit coupon (show us a fruit coupon). Let's look at the price of fruit first.
The king wants to test us again. He said, 7 yuan only buys two kinds of fruits. What do you want to buy? Why? What else can I buy?
3、
Infant operation
4. Comment: How many methods do you have? What did you buy?
5. Teacher: What if seven dollars buy three kinds of fruits?
Fourth, the end:
"Where are the seven little monkeys?" Large class math teaching plan 2 1. By creating situations, games and competitions, children can learn the addition of 7 in operation and further understand the practical significance of addition and subtraction.
2, learn to draw and compile addition application questions and formulas.
3. Cultivate children's analytical reasoning ability and thinking agility.
Second, the activity preparation
Magnetic number1~ 7; Some magnetic symbols "+","-"and "="; 3 pictures of teaching background; 7 pictures of fruits and animals; 6 game cards; Some toys.
Third, the activity process
(1), review the composition of 7.
Teacher: Today, the dog invited the lamb to his house, and the monkey invited the lamb to his house. What should the lamb do? Show 7 lambs, and children can freely explore and discuss how to divide the lambs into two parts. The teacher asked the children to list 7 points on the blackboard.
(2) In the basic part, learn the addition of 7.
1, learn the addition of 7, and list the addition formulas according to the pictures.
(1), show the picture, and the teacher tells the application question according to the picture: 1 A butterfly flies in the garden, and six butterflies fly in. How many butterflies are there in the garden? Guide children to learn the addition problem 1+6=7, and list another problem 6+ 1=7 according to the exchange law, and ask individual children to demonstrate on stage.
(2) The teacher tells the application problem according to the picture and guides the children to learn the addition problem 2+5=7. According to the exchange law, list an addition problem 5+2=7, and then learn the addition problem 3+4=7 in turn. According to the exchange law, another addition problem 4+3=7 is listed. Please show it to some children.
(2), the game "Happy Math Camp", competition activities, review and consolidate addition 7.
1. Play games. The first floor is "I'll do the math". The men's team will sort out the application questions according to the pictures and the women's team will answer them. With snowflake as an auxiliary calculation, hold up the correct digital card and exchange it.
2. The second level, try to answer the question "Look at your figure". After the two passes, see which team has more marks, choose the winning team and distribute prizes.
(3) Review the game "Go for an outing" by 7.
1. The teacher introduces the name of the game, how to play it and matters needing attention.
2. The teacher showed the formulas one by one, and the children worked out the numbers and quickly stood on the car with the corresponding numbers. The teacher praised the quick and accurate child.
3. The game will be over after playing several times.