"What If" Problem Solving Strategies PPT Courseware

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"What If" Problem Solving Strategies PPT Courseware

Show of hands game rules:

1. There are 5 people in each group. The number of hands raised in each group must be the same as the reported number. Each person raises at least one hand.

2. The group can discuss it, and the group with the fastest raise of hands as required will win.

3. Other students act as referees.

The whole class of 42 people went boating in the park and rented 10 boats in total. Each large boat can seat 5 people, and each small boat can seat 3 people. How many large boats and small boats are rented?

How are you going to solve this problem?

Assume that all 10 are large ships.

Assume that all 10 are small boats.

Assume 5 small boats and 5 large boats.

There are 8 chickens and rabbits in total, and there are 22 legs. Do you know how many chickens and rabbits there are?

(1) Draw 8 circles to indicate a total of 8 animals.

(2) First make assumptions, draw legs for each animal based on the assumptions, and calculate how many more (or fewer) legs the drawn legs have than the actual ones.

(3) How to make adjustments.

(4) Write down the calculation process and check it.

Xiao Ming has a total of 20 RMB notes of 2 yuan and 5 yuan, with a total value of 79 yuan. How many RMB notes of each denomination are there?

⑴ Treat these 20 pictures as 5 yuan: 20×5=100 (yuan)

⑵How many yuan more is this than the actual amount: 100-79=21 (yuan)

⑶5 yuan per ticket is more than 2 yuan per ticket: 5-2=3 (yuan)

⑷How many pieces with a face value of 2 yuan are there: 21÷3=7 (pieces)

⑸How many pieces with a face value of 5 yuan are there: 20-7=13 (pieces)

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For more information about the "Problem-Solving Strategies Assumptions" PPT courseware, please click the "Problem-Solving Strategies ppt Assumptions" ppt tag.

"Conjectures and Hypotheses" PPT:

Hunan Education Edition fifth grade science, first volume, conjectures and hypotheses PPT, part one: examples in life. Give a few examples of doubts in life. How did you do it? In the face of magical natural phenomena, scientists have had doubts just like us, and always want to find out...

"Hypothesis" Problem Solving Strategies PPT Courseware 2:

"Hypothesis" Problem-Solving Strategies PPT Courseware 2 Teaching Objectives 1. In the process of solving practical problems, initially learn to use hypothesis strategies, analyze quantitative relationships, determine problem-solving ideas, and effectively solve problems. 2. Feel the value of hypothetical strategies for solving specific problems..

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Update Time: 2024-11-14

This template belongs to Mathematics courseware Jiangsu Education Edition Sixth Grade Mathematics Volume 1 industry PPT template

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