1, guide children to learn the first group of addition and subtraction of 7 while enjoying animation.
2, with the help of animation demonstration, guide children to initially perceive the reciprocal law of addition and subtraction.
3. Cultivate children's hands-on operation ability and reverse thinking ability.
Second, the activity preparation:
Teaching courseware "Learning 7, the first group of addition and subtraction"
Every child has a set of numbers. Three. Activity flow:
Beginning part:
Question and answer game: review the composition and decomposition of 7. Click on the courseware, and Mother Cat appears: "Look, children, who's here?" Mother cat wants to play a question and answer game with the children!
After opening the courseware, Mother Cat asked: Let me ask you, children, what is 1 and divisible by 7?
Children answer: 7 can be divided into 1 and 6. Review the composition and decomposition of 7 in turn. Mother cat praised the children "Great!" Mobilize children's learning enthusiasm.
Basic part:
(1) Enjoy Cat Fishing and learn the first group of addition and subtraction of 7.
1, demo courseware, children enjoy the animation and answer questions.
(1) Here comes the kitten. Let's have a look. How many kittens are there? How did you work it out? How to express it? Learning 1+6=7 6+ 1=7.
(2) Mother cat took her kitten to the river to fish, watched the kitten fish and eat fish, and learned 7- 1=67-6= 1.
2. Animation demonstration of the law of addition and subtraction reciprocity Animation demonstration of the movement and change of numbers and addition and subtraction symbols to guide children to discover the law.
(2) Appreciate the self-compiled application questions of "Cats Catch Butterflies" and "Cats Chase Birds".
1, the courseware demonstrates how many butterflies have come, how many have flown away and how many are left?
Operation exercise: 6+1= 71+6 = 7 7-1= 6 7-6 =12. The courseware demonstrates the kitten chasing birds: How many birds are there in the forest, and how many have flown away?
Children's self-made application problems, operation exercises: 6+1= 71+6 = 77-1= 67-6 =1.
(3) Write application questions according to the objects. (The application of masons in calculation activities) (4) Writing application questions through calculation formulas.