"Developing Green Resources" PPT

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"Developing Green Resources" PPT

Part One: Teaching Objectives

1. Experience the process of solving practical problems such as tree growth and oxygen production.

2. Be able to comprehensively apply the knowledge learned to solve practical problems related to tree growth and oxygen production.

3. Understand the importance of trees to human beings, and cultivate awareness of protecting and developing green resources.

Developing green resources PPT, part 2: Trees become talents

(1) A live sapling can grow into a large tree with a diameter of about 30 centimeters and a height of about 2.5 meters in 10 years.

(1) If a tree grows for 10 years, how many cubic meters of timber will be produced?

(2) If this round log is processed into the largest square log, what is the volume of the square log in cubic meters?

(2) Plant trees on 1 hectare of land with a spacing of 4 meters between plants and 5 meters between rows.

(1) How many trees can be planted in total?

(2) Approximately how many cubic meters of wood will be produced in 10 years? How many cubic meters of square wood can be produced?

(3) Plant trees on 1 hectare of land with a spacing of 4 meters between plants and 5 meters between rows.

(1) How many trees can be planted in total?

(2) Approximately how many cubic meters of wood will be produced in 10 years? How many cubic meters of square wood can be produced?

Develop green resources PPT, part three: trees produce oxygen

(1) Green plants are consumers of carbon dioxide and also natural manufacturers of oxygen.

(1) The oxygen released by 1 hectare of broad-leaved forest in one day can meet the oxygen needs of how many people in one day?

(2) Approximately how much area of ​​broad-leaved forest does a person need to meet his oxygen needs for one day?

(3) If adults emit 0.9 kilograms of carbon dioxide per day, how much carbon dioxide can be consumed by 1 hectare of broad-leaved forest in one day?

(2) A rectangular forest is 240 meters long and 180 meters wide.

(1) How many tons of oxygen will this poplar forest release per day during the growing season? What about 1 month? (Calculated based on 30 days per month during the growing season)

(2) How many tons of carbon dioxide will this poplar forest consume in one day during the growing season? What about 1 month?

Keywords: Free download of Hebei Education Edition sixth grade mathematics PPT courseware for the second volume, development of green resources PPT download, .PPT format;

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Update Time: 2024-10-02

This template belongs to Mathematics courseware Hebei Education Edition Sixth Grade Mathematics Volume 2 industry PPT template

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