standard_description: Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠0, and use rate language in the context of a ratio relationship. For example, “This recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is 3/4 cup of flour for each cup of sugar.” “We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger.” (Expectations for unit rates in this grade are limited to non-complex fractions.)
problem_activity: Problem 1
__________ graham crackers are shared equally by __________ people.
a.   Choose numbers to fill in the blanks. You can only use each number once: 2, 3, 5.
b.   Represent the situation with a diagram or drawing.
c.   Explain or show how you know that each person will get the same amount of graham cracker.
Problem 2
Han’s work shows how 3 people could equally share 2 graham crackers.
[IMG]
a.   How do you know that each person gets about the same amount of graham cracker? Explain or show your thinking. Organize it so it can be followed by others.
b.   Draw a diagram to show a different way that 3 people could share 2 graham crackers so each person got about the same amount of graham cracker.
Problem 3
a.   Using the set of cards (cut out from
Template: Equal Shares
), match each representation with a situation and expression. Some situations and expressions will have more than one matching representation.
b.   Choose one set of matched cards.
Show or explain how the diagram(s) and expression represent the number of sandwiches being shared.
Show or explain how the diagram(s) and expression represent the number of people sharing the sandwiches.
How much sandwich does each person get in the situation?


aligns: no