Task 5 ; Part 1 (:

1. We start with a stick.
2.Using another 5 equal length sticks, we can form a rectangle.3. Form 2 rectangles in a row.
In the end, we need 11 sticks.

Task 5 ; TFU lesson ( Explanation )

4. Using more sticks , form more rectangles in a row and record the number of sticks you need in the table below :

Therefore , the number of pens increased after each rectangle is formed is always 5 .

5. [Solving using Algebra]


Therefore , the formula is 5n+1

Task 5 ; TFU lesson ( Answers )

3)
We need 11 sticks to form 2 rectangles that are joined together.

4)
1T = 6S
2T = 11S
3T = 16S
4T = 21S
5T = 26S
6T = 31S
7T = 36S
8T = 41S
9T = 46S
10T = 51S
Note ; T = Triangle(s)
S = Stick(s)

5)
1. 1x5+1 = 6
2. 2x5+1 = 11
3. 3x5+1 = 16
4. 4x5+1 = 21
5. 5x5+1 = 26
6. 6x5+1 = 31
7. 7x5+1 = 36
8. 8x5+1 = 41
9. 9x5+1 = 46
10. n x 5+1 = 5n+1

6)
The formula is 5n+1