MATH HBT
Rules
How to work with computers
1. No playing, videos or music. Computers are for working!
2. Follow teachers example.
3. Ask if you dont know what to do.
4. Have fun and learn!
If you dont follow these rules, we find sơmething else for you to do!
1. No playing, videos or music. Computers are for working!
2. Follow teachers example.
3. Ask if you dont know what to do.
4. Have fun and learn!
If you dont follow these rules, we find sơmething else for you to do!
Geometry
Tasks for geogebra
A
1. Draw points A,B,C and D
2. Draw line AB
3. Draw a segment CD
4. Draw a ray AD
5. Move points around
B
1. Draw new line AB
2. Draw parallel line to line AB
3. Draw perpendicular line to line AB
C
1. Draw lines AB and BC
2. Measure acute angle
3. Measure obtuse angle
4. Calculate acute+obtuse
D
1.Test geogebra freely
2. Try to make some art
A
1. Draw points A,B,C and D
2. Draw line AB
3. Draw a segment CD
4. Draw a ray AD
5. Move points around
B
1. Draw new line AB
2. Draw parallel line to line AB
3. Draw perpendicular line to line AB
C
1. Draw lines AB and BC
2. Measure acute angle
3. Measure obtuse angle
4. Calculate acute+obtuse
D
1.Test geogebra freely
2. Try to make some art
Review of chapter 2
Kahoot:
https://create.kahoot.it/kahoots/my-kahoots
Excersises:
Easy:
109, 111, 116
Hard:
110, 113, 117, 118, 120
https://create.kahoot.it/kahoots/my-kahoots
Excersises:
Easy:
109, 111, 116
Hard:
110, 113, 117, 118, 120
Lesson 2
Geometry:
https://www.youtube.com/watch?v=NVuMULQjb3o
https://www.youtube.com/watch?v=2JSk0DC5q4g
Naming the angle:
There are many ways to name the angle:
Most common way:
Right ray, Vertex, left ray. So this angle we can call AOB.
We can also call this angle only O.
Name these angles:
Properties of multiplication.
Write to your notebook:
Examples:
- several negative integers multiplied (what is the rule?)
- Commutative property (a.b = b.a)
- Associative property (a.b) . c = a. (b.c) This can make calculating easy! 13 . (-5) . (-2)
- Distributive property a(b+c) = ab + ac. Calculations in two different way. 4 . (8-6)
https://www.youtube.com/watch?v=NVuMULQjb3o
https://www.youtube.com/watch?v=2JSk0DC5q4g
Naming the angle:
There are many ways to name the angle:
Most common way:
Right ray, Vertex, left ray. So this angle we can call AOB.
We can also call this angle only O.
Name these angles:
Properties of multiplication.
Write to your notebook:
Examples:
- several negative integers multiplied (what is the rule?)
- Commutative property (a.b = b.a)
- Associative property (a.b) . c = a. (b.c) This can make calculating easy! 13 . (-5) . (-2)
- Distributive property a(b+c) = ab + ac. Calculations in two different way. 4 . (8-6)