Lecturer:

The contents of the lecture are: the fifth volume of mathematics in the third grade of primary school published by People's Education Publishing House, lesson 9 of Unit 6 "Multiply multiple numbers by one number" and "Multiply a factor with the middle 0"

Content:

Shuxue.chazidian.com/jiaoyan, a lecture on mathematics

Teaching materials and learning situation analysis, three-dimensional teaching objectives, teaching emphases and difficulties, teaching methodology, preparation of teaching AIDS, teaching process, teaching evaluation and presupposition.

* Analysis of teaching materials and learning situation;

This unit is taught on the basis that students have mastered multiplication in table and can add and subtract correctly within 100. It mainly includes two parts: oral multiplication and written multiplication. The pen calculation of multiplying multiple digits by one digit is the focus of this unit and the basis of multiplying multiple digits. The written multiplication in this unit is divided into two levels:

(1) By multiplying two digits by one digit (no carry), the vertical form of written calculation is introduced to help students understand the calculation principle of written calculation.

(2) There are zeros in the middle and at the end of the factor. This lesson is selected from the middle of the secondary factor and multiplied by 0. On the basis of teaching the written calculation of multi-digit carry multiplication, this lesson teaches the multiplication of 0 and explains the arithmetic of "0 multiplied by any number to get 0" to prepare for the follow-up teaching.