Pages

Showing posts with label Maths9. Show all posts
Showing posts with label Maths9. Show all posts

Tuesday, September 24, 2019

Classroom Layout

Brief - Yesterday, we moved into the new building. We were asked to design a classroom layout for the new math classroom(T8).
This is the classroom layout:

Research - My group and I did some research about some classroom layout and we took some ideas to help us with the design process.












Idea - This is our first and final Idea
What we like about the layout:
- There is enough walking are set through the classroom and enough space to walk in and out of the classroom.
- It looks tidy and organized.
- It suits the classroom well because it has a big space.
What we don't like about the layout: 
- The students near the computer station might not see the whiteboard clearly.
- The students near the door/window can get distracted outside while working.

What do you think about this idea? What do you like and dislike about it? Please give us feedback in the comments.

Thursday, September 12, 2019

How to find all angles & all sides in a triangle

HYP = 17
OPP = 12
ADJ = ? 
Ө = ?

Proof
S = O/H    C =A/H    T = O/A
To calculate the angle we can use:
SinӨ= OPP/HYP
SinӨ= 12/17
SinӨ= 0.7
To change the angle to degrees I am going to use:
Sin - 1 0.7 = 44.4°

All angles in a triangle must equal to 180°
Ө1 + Ө2 + Ө3 = 180°
Ө1 = 44.4°
Ө2 = ?
Ө3 = 90°

44.4° + ? + 90° = 180

44.4° + 45.6° + 90° = 180
Ө2 = 45.6°





Thursday, June 27, 2019

Calculating squares around the grid

In Maths, we've been working on how to solve the squares around the grid. We came up with 6 ways to calculate it and we've used a 10 by 10 grid.
Here are 3 ways to do it:


My theory for working out the number of the squares is counting the boxes in the top of the grid and in the bottom. Next, you double them. You also do the same on the side of the grid. After you have the answer, you subtract them.
(Remember you can only count the boxes in the edge once)

Example: The number of squares in the top and at the bottom is 10.
(double it) 10 x 10 = 100
In both sides of the grid, there are 8 squares
(double it) 8 x 8 = 64
Now, you subtract them.
100 - 64 = 36

Other methods


In this method, we had to count the boxes on each side of the square. The reason why I used 9 because in each side there are 10 boxes but if we don't count the corners twice, we have 9.
For example 9 + 9 + 9 + 9 = 36
In algebra:
n-1 + n-1 + n-1 + n-1 = 36






The second method is adding the two bottom rows and the 2 sides together.
We only count the corners once that's why we have 8 as the side rows.
For example 10 + 10 + 8 + 8 = 36
If we use algebra as a calculation, it will look like this:
n + n + n-2 + n-2 = 36




Do you know any other way to do it?