WBSED - 6 - Maths :: Use of Geometrical Instruments
Go To: WBSED-Mathematics-Grade 6
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[Contributor - Kripa S]
Objective: To introduce use of Geometrical Instruments
Subtopics to be covered:
- Ruler, Compass, Protractor, Set Squares, Divider
- Draw using a ruler
Learning Outcome:
- Students can share the use of each of the instruments in geometry box
[Contributor - Rini Jose]
[Contributor - Kripa S]
https://www.youtube.com/watch?v=gh0ugwvwGrY (uses of geometrical instruments - 1)
https://www.youtube.com/watch?v=nu-ffUmpazY&t=32s (uses of geometrical instruments - 2)
https://www.youtube.com/watch?v=b08V39Nqd4g (uses of geometrical instruments - 3)
https://www.youtube.com/watch?v=CT77zsNYCiQ (uses of geometrical instruments - 4)
[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)
[Contributors - Kripa S, Malabika Sarker]
1. Make 8-10 chits of different types of angles. Hand over one chit to one bench and ask them to enact what angle they are. Eg: If it is an acute angle, the students will stand close to middle student, if it is an obtuse angle, the students will stand far away from the middle student. If it is right angle, the students will stand on his one side and in front to depict 90 deg.
2. Make a team of 2-3 students. On student draws a line and other student has to measure, third student will confirm if the measurement is correct. Repeat this step 4-5 times. This way the students can learn how to use the scale
3. Make a team of 2-3 students. On student draws an angle and other student has to measure, third student will confirm if the measurement is correct. Repeat this step 4-5 times. This way the students can learn how to use a protractor
4. https://drive.google.com/open?id=0BzNF2YyqQxJ-Z1JuZEJQUlJpSXc
[Contributor - Arnab Das]
| Term | Transliterated Term | Translated Term |
| Scale | স্কেল | স্কেল |
| Parallax Error | প্যারালাক্স এরর | লম্বন ভ্রম |
| Compass | কম্পাস | কম্পাস |
| Protractor | প্রট্রাক্টর | চাঁদা |
| Angle | এঙ্গেল | কোণ |
| Vertex | ভার্টেক্স | শীর্ষবিন্দু |
| Obtuse Angle | অবটিউস এঙ্গেল | প্রবৃদ্ধ কোণ |
| Radius | রেডিয়াস | ব্যাসার্ধ |
| Circle | সার্কেল | বৃত্ত |
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