Understanding Double Number Lines and Ratios

This lesson covers the creation and understanding of double number line diagrams, emphasizing the importance of labeling, equal spacing, and equivalent ratios. An example using a recipe illustrates the concept, and the term 'per' is explained. Students are encouraged to summarize their learning in a journal.

What should the two parallel lines in a double number line diagram have?

• Arrows at the ends

• Different colors

• Dotted lines

• Labels describing the numbers

What is important about the spacing of tick marks and numbers in a double number line?

• They should be closer at the start

• They should be random

• They should be closer at the end

• They should be at equal intervals

In the recipe example, what is the ratio of eggs to cups of milk?

• 4 to 1

• 5 to 1

• 3 to 1

• 2 to 1

What does the word 'per' mean in the context of a recipe?

• For all

• For none

• For some

• For each

If a ticket costs $5 per ticket, how much would 4 tickets cost?

• $25

• $20

• $15

• $10

What is the journal prompt for this lesson?

• Write a poem about double number lines

• Summarize what you learned in this lesson

• Create a new recipe using double number lines

• Draw a picture of a double number line

What should your summary include according to the lesson?

• A detailed explanation of the video

• A list of all the examples used

• A couple of sentences explaining what you learned

• A drawing of a double number line