Teaching design of primary school mathematics.

Before teaching activities, teachers are usually required to write teaching designs and make creative decisions on how to achieve teaching objectives in the form of plans and layout arrangements to solve the problem of how to teach. What does a good instructional design look like? The following is the teaching design of mathematics in round area primary school, which I carefully arranged, for reference only, and I hope it will help you.

Area of circle: primary school mathematics 1 teaching design of teaching objectives;

1, through students' operation, guide students to deduce the calculation formula of circular area, and use the formula to solve some simple practical problems.

2. In the process of deducing the formula of circular area, let students observe the transformation between "curve" and "straight line" and penetrate the idea of limit to students.

3. Cultivate students' cooperative spirit and innovative consciousness through group meetings.

Teaching focus:

Derive the formula of circle area and its application.

Teaching difficulties:

Relationship between circle and deformed figure.

Teaching AIDS and learning tools: scissors, pictures and CDs are divided into 4 equal parts ... 64 jigsaw puzzles are compared with wall charts.

Teaching process:

First, bring forth the old and introduce new courses.

1. What plane graphics areas have we learned before?

2. How to calculate the area of a rectangle?

3. Recall how the area formula of the planar quadrilateral was derived.

4. Summary: We always deduce the area formula by cutting and spelling, so as to "convert" new graphics into already learned graphics.

5. Is the converted graphic equal to the original graphic area?

6. (Show the picture): What is this picture? What's the difference between the circle and the plane figure we have learned before?

7. Can those circles be transformed into the plane figures I learned before? How to deduce its area calculation formula? This is what we will learn in this class.

The area of circle 2. Primary school mathematics teaching design 1. Introduction to stimulating interest

1, the courseware shows the picture of the shepherd for students to enjoy, and find out the plane figure you know. Picture content: Tie a sheep to a stump with a 2-meter-long rope to eat grass.

2. Talk: Classmates, what is the shape of the largest range that sheep can eat grass? How much grass can sheep eat? Do you want to know? Today, in this class, we will learn the knowledge of "the area of a circle" together. I believe that after this lesson, everyone will be able to solve this problem. [blackboard writing: the area of a circle]

3. What do you want to know after seeing this topic?

(Help students make clear the learning goal of this lesson: (1) Understand what is the area of a circle; (2) Understand what factors are related to it; (3) Understand the derivation process of the circle area formula and master the calculation formula of the circle area, then the circle area will be calculated. )

Second, practical guidance.

(a) Know the area of the circle

1, what is the area of a circle?

2. Group discussion

3. What are the main factors related to the size of the circle? ((1) radius; (2) diameter; (3) perimeter. )

(2) Recall the derivation process of parallelogram area formula.

1, and tell the derivation process of parallelogram area formula respectively. (Then the courseware will be displayed.)

2. Talk: Can we also convert the circle into a learned figure to find the area like the parallelogram area formula?

3. Panel discussion

1, the derived formula of transformation circle

(1), let the students take out the cardboard (1) and observe how many points the circle on the cardboard (1) is divided into and what figure the circle is transformed into.

(2) Let the students take out the cardboard (2) and observe how many points the circle on the cardboard (2) is divided into and what figure the circle is transformed into.

(3) The teacher's courseware shows the graph transformed after the circle is divided into 16 equal parts.

(4) Observing and comparing, what do you find?

2. Guide students to observe and compare, and deduce the calculation formula of circular area.

(1), what figure can a circle be converted into by cutting and spelling?

(2) What is the connection between the new figure and the original circle?

⑶. Try to deduce the formula of circular area. (Courseware demonstration)

Area of rectangle = length × width

The area of the circle =c÷2×r=2πr÷2×r=πr2.

s=πr2

Third, practice consolidation.

1, learn examples with formulas 1,

Students try to do, say the basics, summarize and emphasize.