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100以内数的认识(国外英文资料)
100以内数的认识(国外英文资料)
First, teaching content
Less than 100 of the number of students in understanding is the basic teaching of 20 less than the number on the understanding of the main teaching:
But because of the number of expanded, and less than 20 of the number of different. The first count increased the difficulty (although most students have verbal counting experience. But the count mostly belongs to the number of students singing level, to accurately count the number of objects is not very easy, often easily missed number or number of hops) so it should guide the students to hand mouth consistently accurate count, to enable students to understand the sequence of numbers less than 100, while understanding the calculation unit ten (the first 10 the number is less than a counting unit, ten as the unit of account, in 11 ~ 20 less than the number in the understanding of the preliminary understanding, but because the number is small, there are some limitations, understanding the calculation unit ten in the main unit). The basic contents of this part have basically involves several concepts (such as digital, the basic methods for the number), you can say it is the basis of understanding number.
Two, teaching objectives
1. able to correctly count the number of objects within the 100, know these numbers is composed of several ten and a few components, master 100 less than the number of order, will be less than 100 of the number of size.
Know a 2. bit and ten bit meaning, can correctly read and write the number less than 100.
3. with the number, calculate the ten plus one digit and the corresponding subtraction.
4. specific things, feeling less than the number 100, said things in daily life with a number of less than 100, and simple estimation and communication.
Three, the arrangement characteristics
This part of the contents in the arrangement, inherited some good practices of compulsory textbooks: - through a variety of activities (such as the number of nodes, the pin co
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