Mathematics teaching plan for middle class: understanding the purpose of 0 1 activity;
1, on the basis of understanding the mathematical meaning of 0, understand the application of 0 in life.
2. Be able to use your imagination on the basis of observing 0 creative deformation and boldly carry out 0 creative painting.
3. Be willing to participate in activities and dare to show boldly.
Activity preparation:
Material preparation:
1, 3 boxes containing different items (including 3 bears and 4 building blocks)
2, ppt pictures: ruler, thermometer, balloon, egg, table tennis racket, tennis racket, watermelon.
3. Physical objects: tape measure, tape measure, clock, telephone, etc.
4. Need a 0-point paper hand.
Activity flow:
First, the import part, perceive the meaning of 0.
2. Show the gift box, the child's initial perception 0
Question: The teacher brought three gifts today. Guess what they have?
How many bears and blocks are there in the box? How many can be expressed in numbers? (3 or 4)
There is nothing in this box. How many kinds can you express?
Summary: If there is nothing in the box, it can be represented by 0.
2. Game: Clap your hands and feel the meaning of 0.
Question: Let's play a game of counting and clapping!
Summary: There is nothing in the box that can be represented by 0. When you see 0 in the clap game, you know not to clap your hands.
Second, look for the use of 0 in life.
1, show pictures and understand the application of 0 in life.
Question: Kid, where have you seen 0?
(1) Show me your mobile phone number: What's mom's mobile phone number? There is 0 in mom's mobile phone number.
Show me your house number: What's your house number? (1302) Your family should live in Room 2 on the third floor of/kloc-0, right?
(2) Display the clock: Where is the 0 in the clock? By the way, there is a 0 after 10, which means 10.
Conclusion: 0 has a great effect. The number 0 is in the phone number, house number and clock.
Third, perceive the different meanings of 0.
Teacher: Teacher Zhang brought some pictures to see where 0 is hidden.
(1) Display ruler: Where is the 0 on the ruler? What does the leftmost 0 of the ruler mean?
The leftmost 0 of the ruler indicates the starting point. When measuring the length of an object, the leftmost 0 should start measuring at one end of the object.
(2) Show the thermometer: Where is the zero point of the thermometer? How much is 10? Where are they in 0?
Teacher: What does 0 mean here?
Teacher: 0 on the thermometer means 0 degrees. When the temperature is above 0 degrees, it means that the temperature is getting hotter. When it is below 0 degrees, it means that the weather is getting colder and colder.
Summary: 0 baby is amazing, which can mean no, or it can mean starting point and boundary.
Fourth, show pictures of objects similar to 0 to stimulate children's creative interest.
Question: 0 baby can also do magic. See what 0 baby has become? (Balloon, table tennis racket, watermelon, tennis racket, eggs)
Question: What will the baby become?
Children should be encouraged to be creative and tell their own works.
Teacher: The teacher has prepared many 0 babies. Ask the children to make a big transformation of 0 baby by adding pictures to see who becomes faster and more powerful.
Teacher: Just now, I saw children exchange 0 baby for many interesting things. Who wants to share it with you?
At the end:
Encourage children to find digital babies in their lives.
Middle school mathematics teaching plan: understanding 02 teaching objectives;
1, let children understand the meaning of 0 through observation and practical activities.
2. Standardize the writing of 0 so that children can write 0 correctly.
3. Stimulate children's interest in mathematics-related things by connecting with real life, and let children realize that mathematics is closely related to life.
4. Develop children's logical thinking ability.
5. Let children learn simple math problems.
Teaching emphases and difficulties:
Understand the meaning of 0.
Only by standardizing the writing of 0 can we write 0 correctly.
Teaching preparation:
Keywords Ppt courseware, physical object, digital card,
Teaching process:
(a), audit import:
Teacher: We already know the number 1-5. Now the teacher shows the card. Please clap your hands a few times to see what is on the card.
(2) Scenario introduction
(1) reveals the first meaning of 0: 0 has no meaning.
1. Teacher: The teacher brought a new friend. Look, who is it? Health: Little monkey, eat peaches. The little monkey found a plate of peaches, but he was very happy. Look, how many peaches are there on the plate? What numbers do we use to represent it? The little monkey was hungry and ate a peach. How many? What numbers do we use to represent it? After eating another one, there is nothing on the plate, so what should we show by numbers?
Summary: Nothing is represented by "0".
Children, look at how many balloons this brother has in his hand. My brother accidentally released his hand and both balloons flew away. Does he still have a balloon in his hand? No balloons. How can we express them in numbers?
smile
Summary: "0" is the same as the number 1.2.3.4.5 we learned before, and it has no meaning, just like the previous example.
Teacher: All children know the number "0", so where have you seen it?
(3) Write the story as "0"
1. One day! The caterpillar will have a Tian Zi race with its good friend, and it will pass through these places (upper line, left line, lower line and vertical center line). The caterpillar will start from the starting point of the upper line, run to the left through the left line, reach the lower line, rest for a while, continue running, finally reach the vertical center line, and then return to the starting point.
Teacher: Please observe the caterpillar's route in the Tian Zige competition. What is the number?
2. Teacher: We already know the number 0. Can you tell me what 0 looks like?
Teacher: Please have a look. Is the zero image on the blackboard round? (Kind of like)
0 is not so round, a little long and a little flat, like an ellipse.
Teacher: That's very careful observation. The teacher made up a nursery rhyme for digital baby 0. Please listen carefully to the teacher's nursery rhymes:
The number 0 is like an egg, long up and down and flat left and right. If you want to write well, seal is the key.
Want to know how to write 0? Note when writing: touch the line on the right side of the upper grid, start from the midpoint of the left line of the lower grid, touch the right line of the lower grid, and start writing from the midpoint of the right line of the upper grid. Draw an arc from the center of the upper end to the right and left, touch the left line below the dotted line, then touch the lower line and the right line, draw an oblique ellipse, and return to the place where you started writing. Look, how smooth the lines are.
3. Do the children remember the route of the Caterpillar Tian Zige race? Please stretch out your finger and let's draw the route of the caterpillar race together.
Now, please take out the paper around you and trace the number 0 on the paper to see who described it beautifully and neatly.
Mathematics teaching plan for middle class: understand the background of 03 activities;
In the usual teaching activities, I found that the children in my class like math activities very much, but in the previous teaching activities, the children were familiar with the numbers of 1- 10 and above. And 0 was ignored by us. With the improvement of children's cognitive dimension of numbers. I found that children have doubts, problems and needs about 0, so I designed this activity to let children have the most basic understanding of 0 and lay the foundation for more urgent math learning in the future.
Activity objective: Understand the function of 0 1 It means there is no 2 in the empty set. Can make the number bigger.
Activity preparation: number cards 0-9, item cards with numbers less than 9, headdresses with numbers 0-9, including headdresses with numbers 0 and 0, buttons, etc.
Organizational form: collective
Activity Flow: Digital Solitaire Count Import Activity
First, guide children to know that 0 means there is no empty set.
Step 1: Perceive the cognitive dimension of operation.
1, experience the operation method: children have three buttons in their hands, and then teach them three when they are older, and how many are left in their hands, so that children can understand that 0 means no.
Step 2: Cognitive dimension of image representation.
2. Representation correspondence method: children count the number of objects on the card and put the corresponding digital cards below.
For example, there are five apples on the card. Guide the children to put the number 5 below. Blank cards are represented by the number 0.
3. Representation method: Let children think about when they can say no with 0 in life. Inspire children to fill in application problems, such as: mom gave me two pieces of candy and I ate them all. How many sweets do I have now? What do you mean "no"?
Second, guide children to know that 0 can make numbers bigger.
Step 1: Perceive the cognitive dimension of action.
1, scene performance method: 10 Children wear headdresses with numbers of 0-9 respectively. They all say that they are old and say that 0 is the smallest, but 0 is not convinced. He said, "I have magic. Although it doesn't mean that I am alone, I can use magic to make you bigger. " As he said, he stopped at the edge of 1, and 1 became10; When you stand next to 2, 2 becomes 20, and 0 baby becomes his 0 brothers, so 1 becomes 100, 1000, and 2 becomes 200, 20xx…… ...........................................................................................
Step 2: Cognitive dimension of image representation.
Summary: Illustration method: Tell the story "Poké mon 0" by looking at pictures, and strengthen the two functions of 0: expressing "nothing" and "inflation".
Activity reflection: The children in the middle class are curious, studious and lively. The title of "Poké mon" aroused children's curiosity and thirst for knowledge. Through three games and a story situation performance, the children further strengthened the two functions of 0, thus realizing the implementation and completion of the goal.
Activity expansion:
1, knowing the position of 0 in natural sequence.
2. Inspire children to talk about the different roles of 0 in life.
(1) Things are gone, and 0 means nothing.
(2) 0 on the hygrometer indicates that the humidity is 0 degrees. The higher the temperature, the lower the temperature.
(3) 0, house number, telephone number, calendar and jersey on the license plate all represent a number.
(4) 0 on the scale indicates the starting point.
(5) During the game, 0 on the scoreboard means no goal, 0: 0 means a draw, and 1: 0 means one side scored.
3. summary. The role of 0 is really great, and different 0 means different meanings.
Activity evaluation: the choice of activity content comes from the problems and doubts that children encounter in their usual study. It is pointed out in the outline that we can feel the quantitative relationship from life and games and realize the importance and fun of mathematics. Through this activity, children gradually form some elementary mathematical concepts. Cultivate children's interest in mathematics activities and their initiative and enthusiasm in choosing and participating in activities, and cultivate children's ability to communicate and solve problems with their peers in cooperation and consultation. During the whole activity, teachers always help children think, try, play and talk as guides, supporters and collaborators, so that children can feel the fun of the activity and get a successful experience.