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LESSON 2 Equivalent Fractions and Ratios
Grace's Cookies
Whenever Grace's grandmother comes to visit, she brings cookies for Grace to share with her three brothers. Last week she brought four cookies, so Grace and her brothers got one cookie each.
“Today I brought 8 cookies for the four of you,” said Grace's grandmother.
“How many is that for each of us?” asked Grace's youngest brother.
“Well, we have to share the cookies equally among the four of us,” said Grace. “If there are eight cookies total, that means we each get two cookies, since 4 2 = 8.”
“That's right,” said Grandma. “And next week, I will bring 12 cookies. How many will you each get then?”
“Today I brought 8 cookies for the four of you,” said Grace's grandmother.
“How many is that for each of us?” asked Grace's youngest brother.
“Well, we have to share the cookies equally among the four of us,” said Grace. “If there are eight cookies total, that means we each get two cookies, since 4 2 = 8.”
“That's right,” said Grandma. “And next week, I will bring 12 cookies. How many will you each get then?”
- How many cookies will Grace and her brothers each get if their grandmother brings 12 cookies? Explain how you know.
Grace's grandmother says that for each of the next three weeks she will bring four more cookies than the week before. Grace makes a table to show the number of cookies her grandmother brings, starting with the first week.