TNSB - 8 - Maths :: Practical Geometry Term 1
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[Contributor - Kripa S]
Objective: To construct quadrilaterals, find area of quadrilateral
Subtopics to be covered:
- Quadrilateral, its area and construction with given information (5 types)
- Trapezium, its area and construction with given information (4 types)
- Parallelogram, its area and construction with given information (4 types)
Learning Outcome:
- Students can construct a quadrilateral trapezium, parallelogram based on given measurements from one of the explained types
[Contributor - Rini Jose]
https://drive.google.com/open?id=1IbFLWxReUlD-DBsHrYwUpoWIeuWSa6AS (English)
https://drive.google.com/open?id=1Tr4osAOMR0GlyplJ6fDRr51nl9zOItF2 (Tamil)
[Contributor - Sumathi Sampath]
https://www.youtube.com/watch?v=scFyvxdERaQ (Quadrilateral Properties)
[Contributor - Kripa S]
https://i.ytimg.com/vi/yTFfWMCZYK4/maxresdefault.jpg (Geometry Box)
https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Geom_compass_ruler.png/800px-Geom_compass_ruler.png (how to use a ruler, compass)
http://www.technologystudent.com/images7/obliq3.gif (Use of set squares)
http://www.helpingwithmath.com/images/geometry/angles_measuring11.gif (use of protractor)
[Contributor - Kripa S]
1. Take 2 pens or sticks on one length and 2 more of a different length. Make a rectangle using these 4 sticks. Push two opposite side sticks a little changing its angle from 90 deg. Is it still a rectangle or is it a parallelogram? Push the newly formed shape to the other side to make a different angle. Would it then be called a rectangle? Share your views.
2. Make two teams. One team will draw a quadrilateral on the board, and other team has to identify which one it is. Play this for 5-6 rounds. The team that scores more points wins.
[Contributor - Nivetha Sivaswamy]
https://drive.google.com/open?id=0BzNF2YyqQxJ-ZEtmLVBmRk5ENm8
[Contributor - Gayathri Arun]
| Term | Transliterated Term | Translated Term | |
| Construction | கன்ஸ்ட்ரக்ஷன் | அமைப்பு | |
| Quadrilateral | குவாட்ரி லேட்டரல் | நாற்கரம் | |
| Diagonal | டையாகினள் | மூலைவிட்டம் | |
| Angle | அங்கிள் | கோணம் | |
| Side | சைடு | பக்கம் | |
| Trapezium | ட்ரபேசியம் | சரிவகம் | |
| Parallelogram | பரல்லேலோக்ராம் | இணைகரம் | |
| Area | ஏரியா | பரப்பளவு | |
| Perpendicular | பேர்பெண்டிகுலார் | செங்குத்து | |
| Parallel | பரல்லேல் | இணை |
[Contributor - Nivetha Sivaswamy]
https://drive.google.com/open?id=0BzNF2YyqQxJ-eGhMX0FiS0RibGc
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