Lesson 3.33.3 Small Group · Group 1
Group 1 · Set BSecond form · new problems, same idea
Learning target With my small group, I can use a ratio table to find equivalent ratios — one step at a time, with support.
Remember3.3 Small Group · Group 1
To make a new row in a ratio table, multiply both numbers by the same scale factor. Never add the same number to both. In a ratio table, we multiply both numbers by the same scale factor to make an equivalent ratio.
Words: Ratio Tables (Tablas de razones)Ratio table (Tabla de razones)Equivalent ratio (Razón equivalente)Scale factor (Factor de escala)Pattern (Patrón)
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1Complete each step, then write the final answer.
A smoothie uses 3 cups of fruit for every 1 cup of yogurt. How many cups of fruit do you need for 4 batches?
Show your workHint The scale factor is 4. Multiply the fruit by 4.
Final answer: -
2Complete each step, then write the final answer.
A recipe uses 3 eggs for every 2 cups of milk. How many eggs go with 10 cups of milk?
Show your workHint Find what number times 2 makes 10.
Final answer: -
3Complete each step, then write the final answer.
On a map, 2 inches stand for 25 miles. How many miles do 8 inches stand for?
Show your workHint Find the scale factor from 2 inches to 8 inches.
Final answer: -
4Complete each step, then write the final answer.
A ratio table has the rows 4:6 and 10:15. What number goes with 14 in the first column?
Show your workHint Divide both numbers in 4:6 by 2 first. Then multiply.
Final answer:
Explain your thinkingRaj added 2 to both numbers in 3:4. Why does multiplying keep the same recipe, but adding changes it?
Sentence starter To make a new row, I multiply ___ by ___. · Adding the same number is wrong because ___.