We should provide students with familiar situations and let them feel the quantity in specific situations. With the help of small squares, disks and sticks, we can use corresponding methods to represent the same quantity, and then transition to digital representation, so that students can realize that a digital symbol can represent the same quantity. You know, numbers on different numbers represent different values.

Specific introduction:

It should be noted that the key point of teaching is to let students experience 1? 9 the abstract process from quantity to number, through 9 plus 1 is ten, understand the expression of ten and 1 The difference of 9 is to write 1 in the new position, which is called ten digits. 1 on the ten digits means 1 ten digits, and 1 ten digits are represented by the numeral symbol 10. In the same way, know the number within a hundred, and know the number within ten thousand.

Detailed introduction:

1 1~20 Each number is one of the important knowledge points to help students establish the concept of numbers. Students' understanding of logarithm is not just a single number, but counting with ten as a whole, which is an important stage to establish the concept of decimal places.

The content presented in the textbook is divided into two parts: first, count one number and put one. This is to use students' original experience to establish the concept of ten bundles, and then help students to establish the representation of 1 1~20 numbers, put one and think about it. This part focuses on the combination of images and numbers, which is also an important link for students to transition to abstract symbols.

At the same time, learn this part to let students know that ten digits are composed of 1 tens and several ones respectively. The second is the expansion of digital understanding. In order to give students a comprehensive understanding of numbers, the textbook arranges reading on a ruler.

Analysis of learning situation:

10~20 classmates, but I don't know the composition. In addition, the simplicity of binding 10 is blank. How to make students feel the simplicity of 10 is the focus of this lesson.

Let students understand and establish the concept of number through operation activities, but the first-year students have poor self-discipline and are easily distracted. How to organize activities effectively is also the focus of this lesson.