Ratios with Diagrams

Ratio Visuals Lesson

Before we get started...

• You'll take notes on each each type of visual during asynchronous time today

• Pay attention to how each visual works and speak up if you have questions!

Open Ended

Mrs. J’s cornbread recipe calls for 3 cups of cornmeal for each cup of flour.

What is the ratio of cornmeal to flour?

Open Ended

Mrs. J’s cornbread recipe calls for 3 cups of cornmeal for each cup of flour.

How many cups of dry ingredients (cornmeal + flour) are in the recipe?

Open Ended

What do the yellow squares represent? What does the white square represent?

Open Ended

Where do you see the total amount of dry ingredients in the tape diagram?

Open Ended

Do you have any questions about the tape diagram?

Open Ended

What patterns do you see in the ratio table?

Multiple Choice

We can also add a column to our table to show the total amount of dry ingredients.

What would be the next set of values in the table?

• 10 cups cornmeal, 4 cups flour, 13 cups total

• 12 cups cornmeal, 4 cups flour, 16 cups total

• 12 cups cornmeal, 4 cups flour, 24 cups total

Open Ended

What do you notice about the double number line diagram?

Open Ended

Why might it be helpful to have the tape diagram and the table shown together?

We can also show the double number line and tape diagram together.

Poll

Which one of the representations makes the most sense to you?

• Tape Diagram

• Ratio Table

• Double Number Line

• Table + Tape Diagram

• Number Line + Tape Diagram

Open Ended

Why do you like that representation the best?