NCERT - 8 - Maths :: Visualizing Solid Shapes

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Go To: NCERT-Mathematics-Grade 8

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Course Content / Subtopic list:


  1. View Of 3D Shapes
  2. Mapping Space Around Us
  3. Faces,Edges,Vertices

Lesson Plan

[Author - Kripa S]


Objective: Revise 3D and 2D shapes, reading a net of an object and draw the 3D shape

Subtopics to be covered:

- 2D figures, 3D shapes and their connection

- Different ways to view a 3D object (top, front, side)

- Faces, Edges, Vertices for a 3D object, Euler's formula

Learning Outcome:

- Students can identify different 2D and 3D shapes

- They know to read, or draw the different views for a 3D shape

- They can solve problems based on 3D objects using Euler's formula



Videos

[Contributors - Kripa S, Rishi Mazumdar]

(Source - Smart Learning for All)

https://www.youtube.com/watch?v=AsQ_uJDBrIU (English -solid shapes)

(Source - Bodhaguru)

https://www.youtube.com/watch?v=2Ks4vl4_X_s (Hindi - how to get 3D shapes from 2D shapes)

(Source - MagicPathshala.com)

https://www.youtube.com/watch?v=9E68DOaAJvU (Hindi - solid shapes)

(Source - Khan Academy)

https://hi.khanacademy.org/math/in-math-by-grade/in-eighth-grade-math/new-topic-2016-12-08T07:07:56.390Z (Hindi - Visualizing solid shapes)

Images

[Author - Kripa S]


https://appdesignclass.files.wordpress.com/2014/08/shape-and-form.jpg (2D to 3D)

http://site.unbeatablesale.com/img308/edre39802.gif (shapes)

https://s-media-cache-ak0.pinimg.com/originals/b1/c0/60/b1c060894693fb7387cb851e980d1dd6.jpg (3D shapes)

Activities

[Author - Kripa S]


1. Share examples of cube, pyramid, sphere from daily life. (example: ice cream cone, moon, ball, dice, brick etc)

2. Make different closed 3D shapes using 12 pens or sticks.


Additional Aids

[Contributor - Reshav Dey]

https://drive.google.com/open?id=0BzNF2YyqQxJ-U0o0eWdCdG5BZ2s

Transliteration

[Contributor - Suwetha]

Term Transliterated Term Translated Term
Solid shape सॉलिड शेप ठोस आकारों
Cube क्यूब घन
Cuboid क्यूबाइड घनाभ
Sphere स्पीयर गोला
Cone कोन शंकु
Hemisphere हेमिस्पीयर अर्धगोला
Mapping मैपिंग प्रत्रिचित्रण
Face फेस फलक
Edge एज किनारे
Vertices वेर्टिसेस शीर्ष
Polyhedrons पोलीहैड्रोन्स बहुफलक
Convex polyhedrons कॉन्वेक्स पोलीहैड्रोन्स उत्तल बहुफलक
Regular polyhedrons रेगुलर पोलीहैड्रोन्स सम बहुफलक
Prism प्रिज़्म प्रिज़्म
Pyramid पिरामिड पिरामिड

Worksheets

[Contributor - Reshav Dey]

https://drive.google.com/open?id=0BzNF2YyqQxJ-U181QXJCQVlfZjQ


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