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

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

Part One: Lesson Objectives

1. Be able to use route diagrams to represent tree planting issues on closed routes and develop the ability to analyze problems.

2. Be able to initially establish a mathematical model for tree planting problems, and classify similar problems in life based on the model.

PPT on tree planting issue, part 2: review introduction

There is a 180m long path in front of the school. The school plans to plant ginkgo trees on one side of the path and on both ends, with one tree planted every 6m. How many trees will be planted in total?

180÷6+1=31 (tree)

Answer: A total of 31 trees will be planted.

PPT on tree planting issues, the third part: interactive new teaching

Uncle Zhang is going to plant trees around the circular pond. The perimeter of the pond is 120m. If one tree is planted every 10m, how many trees will be planted in total?

Try drawing a picture first. Assume the perimeter is 40m...

Can plant 4 trees.

I found that the number of intervals corresponds one to one with the tree.

It is equivalent to planting on one end and not planting on the other.

120÷10=12 (tree)

Answer: A total of 12 trees will be planted.

PPT on tree planting, Part 4: Consolidation exercises

1. The total length of the circular skating rink is 150m. If a light is installed every 15m along this circle, how many lights need to be installed in total?

150÷15＝10 (cups)

Answer: A total of 10 lights need to be installed.

2. A necklace is 60cm long and has a crystal every 5cm. How many crystals are there in this necklace?

60÷5＝12 (pieces)

Answer: There are 12 crystals in this necklace.

3. The community garden is a rectangle with a length of 60m and a width of 40m. Now we need to plant trees around the garden, at all four corners, with a distance of 5m between every two adjacent trees. How many trees should be planted in total?

(60+40)×2=200 (meters)

200÷5=40 (tree)

Answer: A total of 40 trees will be planted.

PPT on tree planting, part 4: Class summary

Tree planting problem on closed routes: trees = number of intervals = total distance ÷ distance between trees.

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 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...

"Tree Planting Problem" Mathematics Wide-angle PPT (Lesson 3):

"Tree Planting Problem" Mathematics Wide-Angle PPT (Lesson 3) Part One Content: Learning Objectives 1. Learn to use line segment diagrams to represent tree planting on closed curves in tree planting problems, and cultivate students' ability to analyze problems; 2. Establish tree planting Mathematical model of the problem,...

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Update Time: 2024-10-05

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

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