T4
Make tables of equivalent ratios and find missing values
RP.3a
Lesson 1
A ratio is tool for comparing two quantities of the SAME things
It tells you how much of one thing there is compared to another thing.
Today, we're going to relate factors and multiples to ratios.
Ratios show up in many places in real life: morning oatmeal 2 parts water to 1 part oats; cinnamon roll recipe calls for 15 cups of flour to 3 cups of milk
Scale up: want to make oatmeal for MORE than just my family
Scale down: want to make LESS, so we don't have so much left over
Now that you know how a ratio table works (how all the ratios are connected), let's look at a ratio table with missing numbers.
Consolidation
Notes
#1 Can't figure it out? Don't see a pattern? Add a row and scale down
#2 You can always scale down, scale up or vice versa
My Responsibilities
Due 11/18
1. CYUqs:
You are all going to do some of these. But, there are three things for you to keep in mind. First, do your own. Second, you choose where to start. Third, check your work with the students around you, and if you need help, get help. And if someone needs help, give help.
Check answers to make sure you are understanding:
2. Be sure that your notes are your notes are up to date:
3. Stuck? Choose to persevere: review your thinking, try different approaches, ask for help, search
Lesson 2
After completing the Check-your-understanding Questions, which were important for everyone to do?
Lesson 1
A ratio is tool for comparing two quantities of the SAME things
It tells you how much of one thing there is compared to another thing.
Today, we're going to relate factors and multiples to ratios.
Ratios show up in many places in real life: morning oatmeal 2 parts water to 1 part oats; cinnamon roll recipe calls for 15 cups of flour to 3 cups of milk
Scale up: want to make oatmeal for MORE than just my family
Scale down: want to make LESS, so we don't have so much left over
Now that you know how a ratio table works (how all the ratios are connected), let's look at a ratio table with missing numbers.
Consolidation
Notes
#1 Can't figure it out? Don't see a pattern? Add a row and scale down
#2 You can always scale down, scale up or vice versa
My Responsibilities
Due 11/18
1. CYUqs:
You are all going to do some of these. But, there are three things for you to keep in mind. First, do your own. Second, you choose where to start. Third, check your work with the students around you, and if you need help, get help. And if someone needs help, give help.
Check answers to make sure you are understanding:
2. Be sure that your notes are your notes are up to date:
3. Stuck? Choose to persevere: review your thinking, try different approaches, ask for help, search
Lesson 2
After completing the Check-your-understanding Questions, which were important for everyone to do?