MHSB - 5 - Maths :: Circle
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[Contributor - Kripa S]
Objective: Introduce Circle and Explain different components of circle
Subtopics to be covered:
- Identify center, radius, diameter, arc, chord, interior point, exterior point in a circle
- Draw a circle with a compass
- Calculate, measure circumference of a circle
Learning Outcome:
- Students can identify any asked geometrical concept/ idea in a given set for a circle
- They can draw a circle, measure its radius and calculate its circumference
[Contributor - Kripa S]
http://cart.ebalbharati.in/BalBooks/pdfs/501020004.pdf#page=50 (Marathi Medium)
http://cart.ebalbharati.in/BalBooks/pdfs/503020004.pdf#page=50 (English Medium)
[Contributors - Kripa S, Swapnali Shrikande]
https://www.youtube.com/watch?v=7oNTNoYlqKg (Marathi - Circle video 1)
https://www.youtube.com/watch?v=DO5D_tDGQ88 (Marathi - Circle video 2)
https://www.youtube.com/watch?v=Bptq3NTB6wk (Marathi - Explanation of Circle concepts)
https://www.youtube.com/watch?v=9bRC2D4d9bE (Marathi - Area of a circle)
[Contributor- Kripa S]
http://www.gmatfree.com/wp-content/uploads/2014/07/ScreenHunter_185-Oct.-13-16.52.jpg (circle)
http://www.tpub.com/math1/18.htm26.gif (arc, sector, chord)
https://s-media-cache-ak0.pinimg.com/originals/5f/6f/8f/5f6f8fa04a02fb82eaa2bd4373f7d5d1.jpg (all parts in circle)
[Contributors - Kripa S, Swapnali Shrikande]
1. Make teams of 5 students. Ask students to give examples of things that have shape of a circle:
eg: chapati, moon, sun, earth, ball, bangle, coins etc.
The team with maximum examples win.
2. https://www.youtube.com/watch?v=RJI9c0Cw_dU (Circumference and Diameter of Circle Pi | Marathi Video)
[Contributor - Abhishek Bhatewara]
https://drive.google.com/open?id=1l_BdjUJfMwd3giRRKpuA4u5NBAn-BE9j (Answer key 2)
https://drive.google.com/open?id=1cErFjERRLtKnEu88xXtF-Dp7_6I5R09U (Answer key 3)
https://drive.google.com/open?id=0BzNF2YyqQxJ-aW10YVE5V0dhSzQ (Answer Key 4)
| Term' | 'Transliterated Term' | 'Translated Term' |
| Circles | सर्कल | वर्तुळ |
| Radius | रेडियस | त्रिज्या |
| chord | कॉर्ड | जीवा |
| Diameter | डायामीटर | व्यास |
| convenient | कन्विनियंट | सोईस्कर |
| Distance | डिस्टंस | अंतर |
| Steady | स्टेडी | स्थिर |
| Shape | शेप | आकृती |
| Centre | सेंटर | केंद्रबिंदू |
| Relationship | रिलेशनशिप | संबंध |
| Length | लेंग्थ | लांबी |
| Twice | ट्वायस | दुप्पट |
| Verify | वेरिफाय | पडताळा |
| Fold | फोल्ड | घडी |
| Interior | इंटीरियर | अंतर्भाग |
| Exterior | एक्स्टीरियर | बाह्यभाग |
| Land and sea | लँड अँड सी | तळ्यात मळ्यात |
| Circumference | सरकम्फरंस | परीघ |
| Bowl | बावल | वाटी |
| String | स्ट्रींग | दोरा |
| Wind | वाइंड | गुंडाळणे |
| Unwind | अनवाइंड | सोडणे |
| Straighten | स्ट्रेथन | सरळ करणे |
| Arc of circle | आर्क आॅफ सर्कल | वर्तुळकंस |
[Contributors - Sonam Lakhe, Abhishek Bhatewara]
https://drive.google.com/open?id=0BzNF2YyqQxJ-MVAtZTVZX0ZkOEU
https://drive.google.com/open?id=0BzNF2YyqQxJ-Q09hd2VjMzE0Nmc (Worksheet 2)
https://drive.google.com/open?id=0BzNF2YyqQxJ-QmxDZlpuZ3ltWVk (Worksheet 3)
https://drive.google.com/open?id=0BzNF2YyqQxJ-TWphaVVNR1NkZVE (Worksheet 4)
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