"Organization and Review" Multiplication in Tables PPT Courseware

Description

"Organization and Review" Multiplication in Tables PPT Courseware

teaching objectives

1. Experience the process of organizing and reviewing the meaning of multiplication, multiplication formulas and related calculations.

2. Further understand the meaning of multiplication, memorize the multiplication formulas from 2 to 6, and be able to use the formulas to calculate correctly.

3. Feel the role of formula organization and cultivate students’ consciousness and habit of summarizing and reviewing.

The origin of making dumplings during the Spring Festival

The custom of eating dumplings during the Spring Festival originated from the Ming Dynasty to the Qing Dynasty. It is a popular way of celebrating the New Year in the vast areas of northern my country.

Spring Festival dumplings are made on the night of New Year's Eve and eaten at midnight (midnight), which is the beginning of the first day of the first lunar month. It means "Gengzi", and "Jiao" and "Jiao" are homophonic, so it is called "dumplings". . Coins are also wrapped in dumplings, and those who eat them are believed to have good luck.

several algorithms

Estimate first, then calculate

① Count them one by one, 47 in total.

②First count how many in each circle, then add them up, 6+16+25=47.

6+6+6+6+6=30(pieces)

5+5+5+5+5+5=30(pieces)

6×5=30(pieces)

5×6=30(pieces)

practice

1. Look at the diagram and calculate.

2. Fill in >, < or = in ○.

6×2○6＋6 6-1○1×6

6×4○5×5 6×3○6+3

4×5○5×4 6×2○4×3

3. Fill in the number in □.

□×3＝12 4×□＝8 □×5＝15

□×5＝20 6×□＝36 □×4＝24

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Update Time: 2024-10-02

This template belongs to Mathematics courseware Hebei Education Edition Second Grade Mathematics Volume 1 industry PPT template

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