Lesson 3.63.6 Small Group · Group 1
Group 1 · Set BSecond form · new problems, same idea
Learning target With my small group, I can use ratio reasoning to convert between units within the same measurement system — one step at a time, with support.
Remember3.6 Small Group · Group 1
A conversion factor is a ratio between two units. To change to a smaller unit, multiply, because you need more of the smaller unit. To change to a smaller unit, multiply by the conversion factor. You get more of the smaller unit.
Words: Conversion factor (Factor de conversión)Unit ratio (Razón unitaria)Convert (Convertir)Measurement system (Sistema de medidas)Double number line (Recta numérica doble)
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1Complete each step, then write the final answer.
A rope is 3 yards long. There are 3 feet in 1 yard. How many feet long is the rope?
Show your workHint Feet are smaller than yards, so multiply: 3 × 3.
Final answer: -
2Complete each step, then write the final answer.
How many inches are in 8 feet?
Show your workHint Inches are smaller than feet. Multiply by 12.
Final answer: -
3Complete each step, then write the final answer.
A pitcher holds 2 quarts of juice. There are 4 cups in 1 quart. How many cups of juice does the pitcher hold?
Show your workHint Cups are smaller than quarts, so you will get more cups.
Final answer: -
4Complete each step, then write the final answer.
A recipe needs 3 pounds of cheese. Each package of cheese has 12 ounces. How many packages do you need?
Show your workHint Change pounds to ounces first. There are 16 ounces in 1 pound.
Final answer:
Explain your thinkingWhen you change feet to inches, why does the number get bigger? Use Leo's mistake to explain.
Sentence starter I multiply when I change to a smaller unit because ___. · Leo should divide because ___.