toan hoc 6 . Bài giảng dạy bằng tiếng Anh: 3D Solids and Nét

PowerPoint Presentation 3D SOLIDS AND NETS NHÓM 3 3 4 1 2 1 Introduction to the Problem 4 Summing up 3 Discussing 2 3D Solids and Nets 3 4 1 2 1 Introduction to the Problem 4 Summing up 3 Discussing 2[.]

3D SOLIDS AND NETS

NHÓM 3

• 3D Solids and Nets

• Summing up

• Introduction to the Problem

3 2

• 3D Solids and nets

• Summing up

• Introduction to the Problem

3 2

1 Introduction to the Problem

How many faces, sides, tops are there in each 3D solid?

?

How can you recognize 3D solids object?

Can we calculate the volume of 3D solids object?

?

?

How can you recognize 3D solids object?

• 3D Solids and Nets

• Summing up

• Introduction to the Problem

3

2

2 3D Solids and Nets:

2.1 Part 1: How to classify and understand 3D Solids and Nets.

!

Classify and sort shapes and solids using the properties of lines

(orientation and size), angles (less than, equal to, or greater than

90°), and surfaces.

Solids we use

everyday

2 3D Solids and Nets:

2.1 Part 1: How to classify and understand 3D Solids and Nets.

Work in pairs:

Select a net and make a 2D drawing of it on squared paper.

! Cut out your net and shape it into a 3D model

https://www.geogebra.org/m/exzuzjbj?fbclid=IwAR2T5DoBtXM10E ytGMPcNTt4q7WLnN6HBiOViB4Bg2QMSl-AU-PUyADFRN4

Overview of splitting the faces of a box into a flat shape

NET OF SOLIDS !!!

How to make a 3D solid ?

Watch this video and

discuss…

2 3D Solids and Nets :

2.1 Part 1: How to classify and understand 3D Solids and Nets.

? One face of a 3D shape looks like this

What could it be? Are there any other possibilities? Prove it!

Explain your solution

Conclusion

Why do we need nets at all?

Being able to understand how a three-dimensional shape is made up of two-dimensional components is not only a useful skill if you need to construct a box, but is also vitally important in any aspect of 3D design

Work

with a

partner !

! !

!!!

2 3D Solids and Nets:

2.2 Part 2: Practice to create 3D Solids and Nets in reality.

! Work in group:

Apply all this new-found knowledge to a design project

Example:

You will have a low sugar recipe for both a main meal and a dessert Your

challenge is to design ECO packaging which will enable these to be take away – in ONE parcel.

HOW to create 3D Solids and Nets

in reality

+ Cardboard for students to make their own nets + Scissors.

+ Pens, pencils, rulers, erasers + Sticky tape.

+ Cardboard for students to make their own nets + Scissors.

+ Pens, pencils, rulers, erasers + Sticky tape.

+ Recycled materials/ Reused materials.

+ Nets of four 3D shapes: cube, cuboid, pyramid

+ Glue.

+ Recycled materials/ Reused materials.

+ Nets of four 3D shapes: cube, cuboid, pyramid

START TIMER

3 : 00 TIME’S UP!

How to make a 3D Cylinder ? ? ?

Rectangular parallelepiped

Cube

Pyramid

3 2

MIND MAPS colutions

Thanks for listening…

GROU

P 3