What does the puzzle mean in the last puzzle of kindergarten Qile math

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1.Counting method.

Taking 15-8=7 as an example, the child is likely to use his fingers, or small building blocks, etc., to subtract from 15 one by one, and after subtracting 8, he will find that there are 7 left.

This algorithm is the most primitive and basic, but it is the most time-consuming. At first, children can be allowed to use this method, because for first-grade children, they need to use some concrete, figurative things to help them make figurative to abstract deductions, so many children will use fingers or small blocks to complete calculations, which is normal. In the future, as long as we slowly let the children realize that other methods are more convenient through practice, and when abstract thinking becomes stronger and stronger, they will naturally give up this algorithm.

2. Do subtraction and want to add.

For example, if we want to count 15-8=? , we can take advantage of the relationship between addition and subtraction, as long as we know how much 8 plus is equal to 15, and then from this it follows that 15 minus 8 is equal to many.

This method is the most time-saving, but it is also the most difficult. Children should not only be very proficient in carry addition within 20, but also have certain reasoning ability and reverse thinking ability.

3. Break the Ten Laws.

For example, 13-5=? Then the first step is to split 13 into 10 and 3, we know that 10-5 is equal to 5 good friend 5, and then 5 plus 3 finally equals 8.

That is to say, if you split a dozen into tens and few, then subtract one number to get the number for this few plus the subtraction of good friends. For example, 17-9=? It is to split 17 into 10 and 7, and 7 plus 9 good friend 1 equals 8.

4. Ping ten method (tail cutting method).

With 15-8=? For example, it can be calculated by subtracting 15 and then subtracting 3.

Why is this counted? Because if you ask the child 15-5=? 26-6=？

39-9=？98-8=？You will find that the child can make answers very quickly.

That is to say, it is easy to subtract two numbers with the same single digit (commonly known as tails), and it is enough to cut off the tail, for example, 26 minus 6 is to cut the tail 6 and leave 20. Then subtract a number from a whole ten, which is also very easy to calculate.

Introduction to Qile Math.

1. Suitable for: large classes, preschools.

2. Content areas: number, quantity, shape, color, space, logical judgment, set classification, statistics, coordinates, base system, conservation, etc.

3. Arrangement mode: multi-idea, multi-method, multi-mode, multi-program, spiraling, no text description, each book arranges the content of seven areas.

4. Quantity: a total of 80 books, 40 books in the first semester, 40 books in the second semester, 5. Class time arrangement: two classes per week, one for each class (school part of the class is completed, and the home part is taken home to complete).

6. Class mode: self-learning, self-management. (It's all Montessori philosophy).

7. Teaching Objectives:

a Comprehensive study of mathematics and the construction of mathematical concepts.

b. Develop the habit of independent thinking and self-directed learning.

c. Establish a habit of thinking with multiple ideas and methods.

d Cultivate children's qualities such as concentration, carefulness, and patience.

e Promote the development of children's logical ability, imagination and comprehension f Develop a good sense of order and communication habits between teachers and students.

g Develop your child's self-confidence.

g Inspire your child's interest in math: fall in love with math!

I did. It's not a lot, but it's not very little, and it doesn't matter if you have a seat -- if you don't sit in Baoding, ask who gets off the bus and sits directly on it when you get to Baoding. There are not a lot of people yet, especially in this weather.

Each figure Wang Xiang represents a number of trapped Zen characters, with graphics on both sides, that is, two numbers to connect them together. Don't look at the pictures, look at the numbers. If 1()3, fill in 2

Is it possible to see how many strokes these graphics can be drawn, and fill in the corresponding numbers?

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