Activity objectives:
1. Review and consolidate the understanding of triangles, squares and rectangles to help children further master the characteristics of ellipses and trapezoid.
2. Guide children to boldly try to record the number of graphics with their own numbers.
3. Improve the sensitivity of spatial perception.
4. Cultivate children's ability to think and solve problems and their ability to respond quickly.
Activity preparation:
1. Self-made courseware: graphics, graphics collage chicken, pig, small goldfish, house, turtle, puppy, etc.
Children have homework paper and pens.
Activity flow:
First play the graphic PPT.
1. "Children, there are several graphic babies in our class today. See who they are? " Show a triangle (with three sides and three corners), a square (with four corners as big and four sides as long) and a rectangle (with two opposite sides as long and four corners as big).
Show ellipse
"Is it round?" (No) "Where do you see that it is not round?" "Let's compare." (Compare the first two pictures and confirm that the ellipse is longer than the circle. ), "So what's the name of this picture?" (oval)
3. Show me the trapezoid.
"How many faces does this figure have? How many angles? You see, the top is short, the bottom is long, the top and bottom are flat, and the other two sides are inclined. What does this figure look like? (Summary: This slide-like figure is called a trapezoid. )
"However, this trapezoidal baby may be naughty. It tumbled for a while and lay down to sleep for a while. Do you think this is still a trapezoid? " (Summary: It turns out that the trapezoid can be put upside down and put in sleep. They are all trapezoidal. )
Second, play the graphic collage PPT.
Teacher: The graphic baby can do magic. Look, what have they become? (chicken)
What patterns did the baby change on the chicken, and how many were there? Come and count, but don't count.
Piglets, goldfish, houses, turtles, puppies, etc. What figure has the baby become? How to record them? (You can use numbers, lines and ideas to guide children)
Third, children's operation:
Interesting graphic collage, and make records.
IV. Evaluation, end of activity:
Ask children to tell their parents or peers about the collage patterns and records.
Teaching reflection
In the teaching process, children actively cooperate, try hard, gain experience in independent practice, feel happiness and joy in collective practice, achieve the purpose of entertaining, and successfully complete the teaching objectives.