Why do we need to learn about ratio

​https://tinyurl.com/Ratio11

​Please type the link below
and put the sticky notes based on your opinion

Find 1 keyword that catch from the video

type your keywords in the sticky notes in the Jamboard!

https://tinyurl.com/propotion12

What is Proportion?
use your own words

type your ideas in the sticky notes in the Jamboard!

https://tinyurl.com/propotion12

​https://tinyurl.com/propotion12

Activity :
Based on the video :
Can you find in your environtment in the class that represent proportion

Let's explore google map

​Compare the actual distance and map distance
find the proportion that you will draw in your book

1. In your book, draw the shape of the map from point A to point B.

2. Give each turning point a letter from A to Z.

3. Measure the actual distance from one point to the next, and so on.

4. Write these distances down.

5. Check out how far it is from point A to point B.

6. Write: Actual distance is... km =... cm The book has a scale: 1 cm is equal to... cm (the actual distance). Put as = 1:....

7. From point A to point B, measure the actual distance and convert it to cm. We will figure out the distance on the paper that will be used to draw the picture this way: distance from point A to point B = 1/total distance in cm = x/distance from point A to point B in cm.

8. Figure out x (the distance from point A to the second point on the paper) by using the ideas of proportion and cross-multiplication.

​STEP

Activity

• You will measure the distance from your home to CCS

• Find the proportion if real .../500. 2/..., 3.5/...., .../250

• ​Compare the actual distance and map distance
  find the proportion that you will draw in your book

2 types of proportions

• Direct Proportions

• Inverse Proportions

​What does direct proportion mean?
Using your own words

​1st unit

​2nd unit

value rise

value rise

​What does inverse proportion mean?
Using your own words

​1st unit

​2nd unit

value increase

value decrease

or

value decrease

value increase

Christian Values and Clean Water in Faithville:

In Faithville, the town council, guided by Christian principles, builds wells based on households without clean water. For every 50 households, they construct 2 wells. After a seminar, they identify a new area with 125 households needing water. How many wells should the council build there to ensure fairness and uphold Christian teachings?