"Estimating the Mass of a Pile of Wheat" PPT

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Hebei Education Edition Sixth Grade Mathematics Volume 2	pptx	6 MB

"Estimating the Mass of a Pile of Wheat" PPT

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Upload Time: 2024-10-29

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"Estimating the Mass of a Pile of Wheat" PPT

Part One: Teaching Objectives

1. Combined with specific situations, experience the process of measuring a cone and solving practical problems related to the volume of a cone. ,

2. Be able to measure relevant data of cones and be able to flexibly use knowledge to solve calculation problems related to cones in life.

3. Experience the wide application of mathematics in daily life, enrich experience in measurement activities, and cultivate awareness of mathematical applications.

Estimating the mass of a pile of wheat PPT, part 2: analysis of examples

Estimate the mass of a pile of wheat.

Each cubic meter of wheat weighs approximately 735 kilograms.

(1) Record measured data and solve problems.

(2) If the circumference of the wheat pile is 9.42 meters and the height is 1.2 meters, and the wheat is put into sacks, and each bag contains 90 kilograms, how many sacks are needed to pack the wheat?

Estimating the quality of a pile of wheat PPT, part three: practice

1. A hoard of wheat has a conical shape on top and a cylindrical shape on the bottom. How many kilograms does this hoard of wheat weigh? (Keep the exact number in kilograms)

2. An approximately conical coal pile has a base circumference of 15.7 meters and a height of 2.4 meters. How many tons is this pile of coal about? (Keep the whole ton in total)

3. A conical sand pile has a base diameter of 6 meters and a height of 2.5 meters. How many tons is this pile of sand?

4. A conical steel piece with a base radius of 1.5 cm and a height of 4 cm. Steel weighs approximately 7.8 grams per cubic centimeter. How many grams does this steel piece weigh? (Keep the whole number in grams)

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Update Time: 2024-10-29

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Estimating the mass of a pile of wheat ppt

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"Estimating the Mass of a Pile of Wheat" PPT