"Tree Planting Problem" Mathematics Wide Angle PPT (Lesson 1)

Description

"Tree Planting Problem" Mathematics Wide Angle PPT (Lesson 1)

Part One: Learning Objectives

1. Learn to use line segment diagrams to represent the situation where both ends of the tree planting problem are planted, and cultivate students' ability to analyze problems;

2. Establish a mathematical model of the tree planting problem, classify similar problems in life based on this model, and try to solve the problem by applying the relationship between the interval and the number of trees in the model.

[Important and difficult points] Understand the rules between the number of intervals and the number of trees, and use the rules to solve problems.

PPT on tree planting issue, part 2: introduction of new knowledge

Can you help them solve this problem?

The students planted trees on one side of the 100m-long path, with trees planted every 5m (planted at both ends). How many trees should be planted in total?

What do you know? How many trees do you think should be planted in total?

Is this correct? Is there any way to verify it?

100÷5＝20 (tree)

PPT on tree planting issues, part 3: classroom exercises

1. Install street lights on both sides of a 2km-long street (also at both ends), one every 50m. How many street lights should be installed in total?

2000÷50＝40 (pieces)

40+1=41 (cup)

41×2=82 (cups)

Answer: A total of 82 street lights will be installed.

The total length of bus route 2 and 5 is 12km, and the distance between two adjacent stops is 1km. How many stations are there in total?

12÷1＝12 (segments)

12+1=13 (pieces)

Answer: There are 13 stations in total.

PPT on tree planting, part 4: Class summary

Classmates, what knowledge have you learned in this class?

Plant both ends: number of trees = number of intervals + 1

Number of intervals = number of trees - 1

The length of the road = number of intervals × length of each interval

When encountering more complex mathematical problems, you can first discover the rules from simple examples, and then apply the found rules to solve the original problem.

Keywords: Free download of fifth grade mathematics PPT courseware from the People's Education Press, tree planting problem PPT download, mathematics wide-angle PPT download, .PPT format;

For more information about the PPT courseware "Wide-angle Tree Planting Problem in Mathematics", please click the PPT tag of "Wide-angle Tree Planting Problem in Mathematics".

"Tree Planting Problem" Mathematics Wide Angle PPT Courseware (Lesson 3):

"Tree Planting Problem" Mathematics Wide-angle PPT Courseware (Lesson 3) Part One Content: Lesson Objectives 1. Be able to use a line diagram to represent tree planting problems on closed routes, and develop the ability to analyze problems. 2. Be able to initially establish a mathematical model for tree planting problems, and be able to combine life...

"Tree Planting Problem" Mathematics Wide Angle PPT Courseware (Lesson 2):

"Tree Planting Problem" Mathematics Wide-angle PPT Courseware (Lesson 2) Part One Content: Lesson Objectives 1. Be able to use a line diagram to represent the tree planting problem of not planting at both ends and not planting at one end, and cultivate the ability to analyze problems. 2. Be able to initially establish a mathematical model for tree planting problems, and be able to...

"Tree Planting Problem" Mathematics Wide Angle PPT Courseware (Lesson 1):

"Tree Planting Problem" Mathematics Wide-angle PPT Courseware (Lesson 1) Part One Content: Lesson Objectives 1. Be able to use a line diagram to represent a tree planting problem with planting at both ends, and develop the ability to analyze problems. 2. Be able to initially establish a mathematical model for tree planting problems, and be able to combine life...

File Info

Update Time: 2024-11-19

This template belongs to Mathematics courseware People's Education Press Fifth Grade Mathematics Volume 1 industry PPT template

Preview