Junior high school mathematics teaching plan quantity teaching plan 1 activity goal:
1, learn how to use a ruler.
2. Appreciate all kinds of rulers (ruler, triangular ruler, tape measure, etc. ) and understand their different functions.
3. Germinate interest in measurement.
4. Cultivate children's comparative judgment ability.
5. Stimulate children's interest in learning.
Activity preparation:
1, all kinds of rulers (ruler, triangular ruler, tape measure, etc. ) equals the number of children.
2. Forms, pens and cartons for measurement
Activity flow:
First, asking questions leads to thinking.
Teacher: Do you know how wide and long the desks, chairs and blackboards are in the teacher's classroom?
Teacher: So if I want to know how long and wide they are, who can help me? (Young: Ruler)
Teacher: Now please observe what is on the ruler. What's a ruler for? Where have you seen a ruler?
The teacher summed up: there are numbers and scales on the ruler, one by one; A ruler is a tool that can be used to measure the length of an object.
Second, the demonstration and operation
Teacher: Please take out the ruler you have prepared. Now please count the small squares (that is, scales) on the ruler. After counting, please try to measure the length of the pencil case. Measure how many small squares are closed and how many small squares are wide, and record your measurement results on paper.
Teacher: Now that you have measured it, I'll ask some children to tell me your measurement results.
Teacher's summary: when measuring, the ruler should aim at the starting point of the measured object, mark it in time and continue the measurement. Remember how many squares you have measured, and then add up the data of several measurements, and the final result is the measured length of the object.
Third, children think and ask questions.
Teacher: Let's discuss why the length and width of pencil boxes measured by children are different. (Guide children to summarize: the measurement results are different with different pencil box sizes. )
Teacher: Now you can measure other objects with your ruler and the method the teacher just taught you.
Fourth, the problem migration, appreciate all kinds of rulers (ruler, triangle ruler, tape measure, etc. ) and understand the role.
Teacher: Today, we also brought many kinds of rulers. Please appreciate these rulers first and see what they do. Where have you seen these rulers?
The Design Background of Math Teaching Plan Quantity —— Activity 2 of Math Teaching Plan in Middle School
Children of this age are very sensitive to the understanding of logarithm and quantity. In a regional corner activity, I found that many children were playing in the math area and were very involved. So I designed this course for children.
moving target
1. Compare areas by counting squares.
2. Can count and write numbers.
3. Stimulate children's interest in quantity.
4. Cultivate children's comparative judgment ability.
5. Guide children to actively interact with materials and experience the fun of mathematics activities.
Teaching emphases and difficulties
Measure by object
Activities to be prepared
Children's wall charts, children's books
Activity process
First, show the children a wall chart to observe and ask questions:
1. What animals do you see in the picture?
Can you tell me which animals you saw?
3. What are they doing?
Second, guide children to read children's books, let children observe and write numbers according to objects, let children color according to the size of the area, and let children say why?
Q: How do you know? What's your method?
Fourth, the teacher shows the real thing for the children to judge.
Verb (abbreviation of verb) group discussion
Personal statement of intransitive verbs
Teaching reflection
1, according to the kindergarten syllabus, children should pay attention to their logical thinking and reasoning ability when learning mathematics.
2. In this class, I mainly guide children to discuss, let children use their imagination and respect their ability to speak and express.
3. In the future math class, let the children discuss in groups, speak independently and express their ideas boldly.
Junior high school mathematics teaching plan quantity teaching plan 3 activity goal:
1, initially select and use materials and tools, and be active in thinking during exploration, so as to master the correct measurement method.
I like hands-on operation and am very interested in exploring things around me.
3. Cultivate children's observation ability and exploration ability.
4. Develop visual perception and judgment.
5. Further improve children's interest in mathematics activities and practical ability.
Activity preparation:
1. Teachers' tools: recording paper and watercolor pens. Children's products: children have one material: recording pen, watercolor pen, straw, small wooden stick, wool, building blocks, graphic pieces, paper clips, mineral water bottles, soft ruler and paper strips.
3. Environment Creation: The classroom will be arranged as an "infant college" environment.
Activity flow:
First of all, the teacher led the topic with the topic of "helping small animals measure' Baby Academy' appliances".
Combine free exploration activities, guide children to communicate and learn correct measurement methods.
1, import:
Teacher: "Small animals want to build their own zoo in the forest, but how to design and build things in the zoo?" Principal Panda thinks the appliances and toys in our classroom are suitable for them, but he doesn't know the size of these things. So I want to ask us to help them measure and record, and then tell them the results of these measurements, so that they can build their own' zoo' according to these looks. "
2. The teacher asked the children to explore and learn to measure the height of the chair they were sitting on with a straw. The teacher guided the children to try to measure and record freely.
(1) Teacher: "The height of the small chairs in our classroom is just right for small animals. Therefore, I have prepared straws and record sheets for everyone. Please measure and record with a straw to see who can measure and record the height of his chair more accurately. "
(2) The teacher asked, "How did you measure it? How many times did you measure it? "
(3) Ask two children with different results to demonstrate how to measure the height of the chair with a straw, so that teachers and students can find the correct measurement method. Teacher: "Their methods are all different, so whose method is more accurate?"
(4) Teachers demonstrate the correct measurement methods and recording methods.
Teacher: "when we measure something, in order to measure and record it more accurately, the measuring tool should be aimed at one end of the measured object;" Make a mark in your own way after measuring once; When measuring for the second time, it should be aligned with the previous mark before measuring; Remember to measure it once. In order not to forget how many times you have measured, you can use dots and vertical lines to help you remember, or you can keep the number in mind. Finally, draw the tools and articles used on the record sheet and record the number of measurements. "
Second, teachers guide children to continue to learn a variety of natural measurement methods in exploration activities.
Guide children to find different measuring objects suitable for using different measuring instruments in activities.
1, teachers guide children to continue to learn a variety of natural measurement methods in exploration activities.
① Teachers introduce the materials and requirements of free exploration activities.
Teacher: "We have learned the correct measurement method just now. There are many things that children need to measure and record in the classroom now? "
"I have prepared a small basket for each child. You are free to choose what is in the basket as a measuring tool. You can measure anything you want. You can choose 2-3 tools to measure, and it is faster to use what you want as a measuring tool while measuring. "
② Guide children to discover that different measuring objects can use different measuring tools according to their own measuring conditions.
Teacher: "What did you measure? How many tools did you use to measure? What other tools can I use? "
2. Guide children to explore again, understand that different measuring objects are suitable for different measuring tools, and discover and master a variety of natural measuring methods.
(1) speculation and discussion.
Teacher: "Just now we have measured the length of a straight line in the right way. Now, the small animals want to know how long the circle (curve) of our desk and chair is. Please use your brains and think about what tools are more suitable? "
(2) Guide children to cooperate with their peers and explore together.
Teacher: "Everyone's ideas are good! Then, what else is round in our classroom and how long is it? Now, please find a good partner to cooperate, choose the right tools, help each other and complete the measurement task. Can you do it? "
"If you encounter any difficulties in the activities, there is no way to solve them. Then, it doesn't matter, we can discuss it with you later. "
③ Understand that different measuring objects are suitable for different measuring tools, and discover and master a variety of natural measuring methods.
Teacher: "Who do you work with? Have you measured the round edge of something? What tool was used to measure it? Why did you choose to use this tool? How do you cooperate? "
(4) Children's demonstration and teachers' summary.
Third, the conclusion:
Teacher: "today, everyone learned how to measure things;" And helped the small animals measure so many things in the classroom; I also know that different things should be measured with different measuring tools, so that it can be more convenient, faster and more accurate. "
Extended activities:
Think about it and remember: what if there is no tool to measure it? (For example, measure the distance of the playground with your steps; Measure the head size with a hat, etc. )
Teacher: "Now there is another problem: what if the small animals want to measure our big playground, but there is no tool to measure it?"
"Children can try it in your way in the future, and then tell the small animals to help them build a' zoo' as beautiful and fun as our kindergarten. Ok? "
Activity reflection:
Because the selected teaching content-natural investigation is a mathematical activity that children are interested in, and it is also a highly operational activity; Moreover, I have prepared enough materials for young children, and I can make it available to everyone. Therefore, the children are very active and enthusiastic in the activities, and everyone is very involved in the exploration activities. Many children who usually don't like hands-on are also active in this activity. Children have been able to master more accurate measurement methods through many free exploration activities; In the measurement, children's ability has also been developed, especially their hands-on ability and exploration ability.
The first link
Appropriate behavior: In the first step, let children make exploratory measurement and discussion according to their own measurement experience, let children speak their own practices and ideas, and play a role in learning from each other. The demonstration of individual children and teachers gives children a preliminary understanding of the correct measurement methods.
Disadvantages:
1, there are many children, but the space is limited. Choosing the height of the chair to measure will block the children's sight and bring inconvenience to their activities.
2. When I demonstrated the correct measurement method, I chose the same measurement object as the children-the chair. Because the space is blocked, the children behind and next to me can't see clearly.
Encyclopedia: Some quantities are determined by nature (such as number), and some quantities are used as descriptions of states (attributes, dimensions and characteristics), such as weight and lightness, length and short, width and narrow, big and small, and more and less.
Junior high school mathematics teaching plan quantity teaching plan 4 activity goal:
1. Learn to identify the length, width and height of an object by visual inspection and natural measurement.
2. Stimulate children's interest in measurement activities.
3, preliminary training observation, comparison and reaction ability.
4. Cultivate children's ability to observe, judge and operate.
5. Stimulate children's interest in learning.
Activity preparation:
Children have 1 empty paper box and 1 self-made multi-purpose ruler (see Figure 7- 12). Figure 7- 12 Self-made multipurpose ruler
Activity flow:
1, introduced by the teacher
(1) The teacher uses empty paper boxes, desks and classrooms as visual demonstration AIDS, so that children can perceive their length, width and height respectively.
(2) How can we know their length, width and height?
Teacher's induction after children's discussion: through measurement.
Visual inspection: with your own eyes, you can roughly compare, but it is not accurate.
Measurement: Measure with a ruler.
The child has a multi-purpose ruler in his hand. The teacher reminded the child to count. There are several small squares on the multipurpose ruler. The child counted it and found that the multi-purpose ruler consists of 10 small colored squares: red, yellow, blue, green and orange. The teacher reminded the children that this multi-purpose ruler can be used to measure the length, width and height of objects.
Step 2 demonstrate
(1) The teacher measured the length, width and height of the table with a steel tape or a wooden ruler.
(2) Individual children use a multi-purpose ruler to measure the length, width and height of an empty carton and tell how many squares there are.
Step 3 operate
(1) Children use their own multi-purpose ruler to measure the length, width and height of empty cartons, and record them on paper.
(2) Children should use a multi-purpose ruler to measure a small table. The length, width and height of the small table should be several feet (the square of 10 is the square of 1) or several small squares, and record them on paper.
(3) Children try to make natural measurements, and teachers tour to observe and guide.
Activity suggestion:
1 inspires children to measure with a multi-purpose ruler, which can be 1 small square or 1 foot (10 small square is 1 foot). Objects of the same length have small units and a large number of measurements; Large unit, less measurement times. For example, the length of an empty carton can be said to be 2 feet long or 20 small squares long.
2. Let the children think again. Besides measuring with a multi-purpose ruler, what else can be used as a measuring tool? Sticks, ropes, chopsticks, steps, hands, etc. )
Junior high school mathematics teaching plan quantity teaching plan 5 activity goal:
1. Learn to identify the length, width and height of an object by visual inspection and natural measurement.
2. Stimulate children's interest in measurement activities.
3, preliminary training observation, comparison and reaction ability.
4. Cultivate children's ability to observe, judge and operate.
5. Stimulate children's interest in learning.
Activity preparation:
Children have 1 empty paper box and 1 self-made multi-purpose ruler (see Figure 7- 12). Figure 7- 12 Self-made multipurpose ruler
Activity flow:
1, introduced by the teacher
(1) The teacher uses empty paper boxes, desks and classrooms as visual demonstration AIDS, so that children can perceive their length, width and height respectively.
(2) How can we know their length, width and height?
Teacher's induction after children's discussion: through measurement.
Visual inspection: with your own eyes, you can roughly compare, but it is not accurate.
Measurement: Measure with a ruler.
The child has a multipurpose ruler in his hand. The teacher reminded the children to count. There are several small squares on the multipurpose ruler. After counting, the children found that the multi-purpose ruler consists of 10 small colored squares: red, yellow, blue, green and orange. The teacher reminded the children that this multi-purpose ruler can be used to measure the length, width and height of objects.
Step 2 demonstrate
(1) The teacher measured the length, width and height of the table with a steel tape or a wooden ruler.
(2) Individual children use a multi-purpose ruler to measure the length, width and height of an empty carton and tell how many squares there are.
Step 3 operate
(1) Children use their own multi-purpose ruler to measure the length, width and height of empty cartons, and record them on paper.
(2) Children should use a multi-purpose ruler to measure a small table. The length, width and height of the small table should be several feet (the square of 10 is the square of 1) or several small squares, and record them on paper.
(3) Children try to make natural measurements, and teachers tour to observe and guide.
Activity suggestion:
1 inspires children to measure with a multi-purpose ruler, which can be 1 small square or 1 foot (10 small square is 1 foot). Objects of the same length have small units and a large number of measurements; Large unit, less measurement times. For example, the length of an empty carton can be said to be 2 feet long or 20 small squares long.
2. Let the children think again. Besides measuring with a multi-purpose ruler, what else can be used as a measuring tool? Sticks, ropes, chopsticks, steps, hands, etc. )