Mathematics teaching plan for middle class: knowing rectangle 1 target;
1, know the rectangle and its characteristics compared with the square;
2. Stimulate the interest in learning graphics and enter the mathematical world.
Prepare:
Each child has 1 square paper and rectangular paper, as well as various rectangular objects.
Process:
Perceive rectangles-more positive and rectangular-and look for rectangles.
Process:
Perceptual rectangle: What does it look like? These things are all made up of rectangles and are very useful.
Compare right angles and rectangles: Let children find the square paper they know from two pieces of paper in my hand, and compare the four sides and the four corners of the square with the broken line method. Guide children to compare the two sides of this paper with origami, so that children can find the characteristics of rectangle. Compare rectangles and squares and talk about their differences. The two opposite sides are squares of equal length, while the two adjacent sides are rectangles of unequal length. (children learn to say)
Look for rectangles: doors and windows are all rectangles. What else is a rectangle? (Cars, stairs ...)
Effect record: I am very interested in learning rectangles. As soon as the teacher gives an example, the children can tell exactly what object it is and what graphics it is made of. Objects made up of rectangles in the classroom can be described, and the similarities and differences between rectangles and squares can be clearly distinguished.
Mathematics teaching plan for middle class: knowing rectangle 2 I. Name of activity:
Know the rectangle (middle class)
Second, the design intent:
Knowing rectangle is the teaching content of middle class. In the process of children's understanding of plane graphics, in line with the principle of step by step, children have already known circles, triangles and squares. On this basis, it is a learning process and an improvement process for children. The Guide emphasizes that children's thinking characteristics are mainly concrete thinking in images, and attention should be paid to guiding children's scientific learning through direct perception, personal experience and practical operation, rather than instilling and strengthening training for children in pursuit of mastering knowledge and skills. To this end, I designed this activity to let children boldly participate in the activity and actively put it into practice.
Three. Activity objectives:
1, understand the basic characteristics of the rectangle and correctly name the rectangle.
2. Rectangles can be correctly recognized without interference of size, color and placement position.
3. Children feel the fun of mathematics through operation and develop the habit of being good at observation in life.
4. Guide children to be interested in numbers.
5. Cultivate children's habit of telling stories while operating.
Fourth, activity preparation:
Material preparation: 1, PPT courseware of "Understanding Rectangle", one rectangular card and one square card each, one Shaoguan game children's operation card, one rectangular children's operation card printed with it, and one watercolor pen child.
Experience makes children know common figures, such as circles, triangles and squares.
Five, the teaching focus:
Understand the basic characteristics of rectangles and name them correctly.
Difficulties in teaching: The rectangle can be correctly recognized without interference of size, color and placement position.
Activity process of intransitive verbs:
(1) situational introduction consolidates children's understanding of squares and leads to rectangles.
1. Children, today the teacher received an invitation from the king of graphics kingdom to take you to visit his graphics kingdom. Let's go and have a look!
There are so many beautiful graphics in the graphics kingdom, let's see who they are. (circle, triangle, square) 3. A new friend came today. Do you know its name? Let's meet it together.
(2) Show the rectangle, and guide children to discuss the main features of the rectangle through observation and comparison.
1. Show a rectangular baby. Q: How many sides does this figure have? How many angles? What is it like?
It has four sides and four corners, much like a square. Show rectangles and squares and compare their similarities and differences.
Observation reveals the same thing: they all have four sides and four corners, and the four corners are all the same size. Similarities and differences: square, four sides are equal in length; Rectangular, two opposite sides are equal in length, and the other two sides are equal in length. Two adjacent sides are different in length. 3. Definition: A figure with four sides, four corners, the four corners are equal in size, the opposite sides are equal in length, and the adjacent two sides are unequal in length is called a rectangle.
(3) The game of "Finding Rectangle" helps children to consolidate and deepen their understanding of rectangles.
1. The graphics baby in the graphics kingdom likes our children very much, and invites us to play a game to see if our children can get through all the levels.
The first level: first show the operation cards with the same color, neatly arranged, but different sizes, so that children can find out all the rectangles and circle them with a pen.
The second level: neatly arranged operation cards of different sizes and colors, let the children find out all the rectangles and circle them with a pen.
Level 3: Show more and more graphic babies of different sizes, colors and placement positions, and let the children find out all the rectangles and circle them with a pen.
Teaching reflection:
1, fully arouse children's enthusiasm and participation in teaching activities. 2, encourage children to express their wishes in their own forms of expression, teachers to give cooperation and support. 3. In teaching activities, give corresponding guidance according to children's age characteristics and personality characteristics.
Middle school mathematics teaching plan: understanding the goal of rectangle 3 activity
1. By comparing the square with the rectangle, we can understand the basic characteristics of the rectangle.
2. Rectangular objects can be found from the surrounding environment, and rectangles can be correctly distinguished without being affected by color, size, shape and position.
3. Stimulate children's interest in graphics in operation activities.
Activities to be prepared
Rectangular and square pictures, house pictures, counting sticks, square and rectangular objects (towels, books, rulers, etc. )
Activity process
I. Import activities:
1, finger game: I have a game.
Today, the teacher brought an old friend Fang Fang to the children. Show the square and let the children talk about how many sides it has. How many angles?
Second, compare squares and rectangles to understand rectangles.
1, show the rectangle and guide children to find the characteristics of the rectangle through observation and comparison with the square.
(1) How many angles does a rectangle have? How many sides?
(2) How about making a discount and seeing the four corners of the rectangle? How about four sides?
2, guide children to summarize the similarities and differences between rectangle and square:
Similarity: How many angles do squares and rectangles have? How many sides? How about the four corners of a square and a rectangle?
Difference: What about all four sides of a square? (Teacher Qu) What are the four sides of a rectangle?
Third, the game: find squares and rectangles to further deepen children's understanding of rectangles.
1, guide children to find squares and rectangles in the dish.
2. Guide the children to find squares and rectangles in the house pictures.
Fourth, life extension:
1. Show square and rectangular objects and let the children talk about their shapes.
2. Associative search: Inspire children to find square and rectangular objects in the classroom.
3. Hands-on operation: provide children with counting sticks and let them try to spell out rectangles on the table.
Math teaching plan for middle class: Know Rectangle 4 Let's know Rectangle (Math for middle class) together.
Activity Name: Understanding Rectangles
Activity purpose:
1 Arouse children's interest in knowing shapes.
2 understand the characteristics of rectangle
Be able to recognize all kinds of graphics.
Activity preparation: pictures (trains drawn with rectangles), rectangular paper cards, square paper cards, and cubes made of foam boards (with various shapes on each side).
elastic
Activity flow:
Show the picture and draw a rectangle.
1 Hi, children, remember who I am?
By the way, I'm Fang, and I brought my good partner today.
Who is he? The child guessed, alas, it was a little shy to hide.
Look in this picture.
Second, identify the rectangle.
Activity preparation: pictures (trains drawn with rectangles), rectangular paper cards, square paper cards, and cubes made of foam boards (with various shapes on each side).
What does this rectangle look like? How many angles are there? How many are there next to it? Are the angles the same? Are both sides the same length? Touch and count, children.
Three. operational action
Divide the children into two groups and surround the rectangle with elastic bands.