Lesson 1.21.2 Small Group · Group 1
Group 1 · Set BSecond form · new problems, same idea
Learning target With my small group, I can make sense of a problem, plan a strategy, and use fractions of a whole number to compare quantities — one step at a time, with support.
Remember1.2 Small Group · Group 1
Make sense of the problem first, then plan: count a small group you can see and multiply to estimate the whole. Before you compute, make sense of the problem and make a plan. Count a small group, then multiply.
Words: quantity (cantidad)relationship (relación)strategy (estrategia)reasonable (razonable)persevere (perseverar)
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1Complete each step, then write the final answer.
A jar is full of beads. One scoop holds about 20 beads. About 7 scoops fill the jar. About how many beads are in the jar?
Show your workHint Multiply the scoops by the beads in one scoop: 7 × 20.
Final answer: -
2Complete each step, then write the final answer.
One scoop has about 40 seeds. About 5 scoops fill a bag. About how many seeds are in the bag?
Show your workHint Multiply the scoops by the seeds in one scoop.
Final answer: -
3Complete each step, then write the final answer.
A crowd fills a gym. You count about 25 people in one section. There are 7 sections like it. About how many people are in the gym?
Show your workHint One section is the small group you counted.
Final answer: -
4Complete each step, then write the final answer.
One handful has about 50 grains of rice. About 20 handfuls fill a cup. About 6 cups fill a bag. About how many grains are in the bag?
Show your workHint First estimate the grains in one cup. Then use the cup as your group.
Final answer:
Explain your thinkingWhy do we count one small group first instead of every bean? How does that plan help?
Sentence starter First I count one small group because ___. · Then I multiply because ___.