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Category | Format | Size |
---|---|---|
People's Education Press Fifth Grade Mathematics Volume 2 | pptx | 6 MB |
Description
"Telephone" Addition and Subtraction of Fractions PPT
Part One: Introduction to the conversation
There are 15 members in a chorus. There is an emergency performance during the summer vacation. The teacher needs to notify every member as soon as possible. If you use a phone call to notify one person every minute, please help the teacher design a phone call plan.
Divide 15 people into 3 groups of 5 people in each group. First call the 3 group leaders, and then the 3 group leaders will notify the 4 group members respectively.
Phone PPT, part 2: exploring new knowledge
I divided the 15 people into four groups, namely 4 people, 4 people, 4 people and 3 people. The first three group leaders notified 3 people respectively, and the fourth group leader notified 2 people.
I divided the 15 people into 5 groups equally. I first notified the 5 group leaders by phone, and then the group leaders notified the 2 team members respectively.
It would save more time if the students who finished the phone call in front are not free and continue to inform other students.
One notification was given in the first minute, two were notified in the second minute, four were notified in the third minute, and eight were notified in the fourth minute. I found that the number of people who received notifications doubled.
Phone call PPT, part 3: practice
If there are 50 people in a choir, what is the minimum amount of time it takes to notify everyone?
Keywords: Free download of PPT courseware for mathematics in the second volume of the fifth grade of the People's Education Press, PPT download on the phone, PPT download of addition and subtraction of fractions, .PPT format;
For more information about the PPT courseware "Addition and Subtraction of Fractions by Telephone", please click the Addition and Subtraction of Fractions by Telephone PPT tag.
"Making Phone Calls" PPT courseware download:
Download the PPT courseware of "Making Phone Calls", 12 pages in total. 01 Pre-class reading Have you made a phone call? How should I make the call? 1. Take a look: Observe the picture carefully. Who is in the picture? What are they doing? 2. Read it: Read the language in the bubbles when they call...
McDull call sound effects:
McDull phone PPT background sound effects. ..
Phone beep sound effects:
Phone beep PPT background sound effect. ..
File Info
Update Time: 2024-10-18
This template belongs to Mathematics courseware People's Education Press Fifth Grade Mathematics Volume 2 industry PPT template
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