Lesson 3.33.1–3.3 Catch-Up
Start hereWords, worked example, and sentence starters
Learning target I can show I am caught up on Lessons 3.1–3.3 by using each lesson's big idea in mixed practice.
Why This Matters Missed a lesson — or just want a refresher? This catch-up station reviews Lessons 3.1–3.3: 3.1 Understand Ratios, 3.2 Understand Rates and Unit Rates, 3.3 Determine Equivalent Ratios Using Tables. Work one example from each lesson, then prove you're caught up in the mixed practice.
Start hereWords for this lesson
Read each word before you begin. Say it out loud.
| Word | What it means | Example |
|---|---|---|
| RatioSpanish: Razón | A way to compare two amounts, like 3 to 2. | 3 cups flour to 2 cups sugar → 3:2 |
| ComparisonSpanish: Comparación | Looking at two or more amounts to see how they are related. | 5 eggs vs. 3 eggs — which recipe uses more? |
| Part-to-partSpanish: Parte a parte | A ratio comparing one part of a group to another part. | 3 teal counters to 5 amber counters → 3:5 |
| Part-to-wholeSpanish: Parte a todo | A ratio comparing one part to the whole group. | 3 teal counters out of 8 counters in all → 3:8 |
| Colon notationSpanish: Notación con dos puntos | Writing a ratio with two dots between the numbers, like 3:2. | 3 to 2 can be written as 3:2 |
| Tape diagramSpanish: Diagrama de cintas | A bar cut into equal parts that shows how two amounts in a ratio compare, and how they make up the whole. | 3 equal parts of apple juice beside 2 equal parts of sparkling water — 5 parts of fruit drink in all. |
How it worksWorked example
These numbers are not on your problems. The steps are. Follow them with your own numbers.
A mix uses 5 scoops of powder for every 2 cups of water. How much water for 15 scoops?
- Find the factor: 15 ÷ 5 = 3.
- Multiply the water by 3 too: 2 × 3 = 6.
- Check: 15 : 6 ÷ 3 = 5 : 2.
Answer: 15 scoops go with 6 cups of water
Now you trySame steps, your turn
The steps are the same as the worked example. The numbers are yours. Do the work.
A garden has 5 roses and 3 tulips. The ratio of tulips to roses is ? : 5. What is the missing number?
Say it and write itSentence starters
Finish each sentence out loud with a partner. Then use them in your writing.
- I multiplied both terms by .
- and are equivalent because .
- Adding does not work because .
- The factor is because × = .
Word bank equivalentratio tablefactormultiplydividebothsamescale upscale downfor everyrowpattern
Watch out!A common mistake
A common mistake in Ratio Tables is scaling only ONE part of the ratio, or adding the scale factor to a part instead of multiplying by it
Lesson 3.33.1–3.3 Catch-Up
Catch-UpSkill bridge
Learning target I can show I am caught up on Lessons 3.1–3.3 by using each lesson's big idea in mixed practice.
Why This Matters Missed a lesson — or just want a refresher? This catch-up station reviews Lessons 3.1–3.3: 3.1 Understand Ratios, 3.2 Understand Rates and Unit Rates, 3.3 Determine Equivalent Ratios Using Tables. Work one example from each lesson, then prove you're caught up in the mixed practice.
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1Complete each step, then write the final answer.
A pencil box has 9 pencils and 2 erasers. The ratio of erasers to pencils is ? : 9. What is the missing number?
Show your workHint Erasers come first in this ratio.
Final answer: -
2Complete each step, then write the final answer.
A vase has 5 red flowers and 4 yellow flowers. The ratio of red flowers to all the flowers is 5 to ?. What is the missing number?
Show your workHint All the flowers means red and yellow together.
Final answer: -
3Complete each step, then write the final answer.
A booth charges $12 for 4 games. What is the cost for 1 game?
Show your workHint Divide the cost by the number of games.
Final answer: -
4Complete each step, then write the final answer.
A pack of 4 stickers costs $1. What is the cost for 1 sticker?
Show your workHint Divide the cost by the number of stickers.
Final answer: -
5Complete each step, then write the final answer.
A recipe uses 1 cup of oats for every 3 cups of milk. How much milk goes with 5 cups of oats?
Show your workHint The scale factor is 5. Multiply the milk by 5.
Final answer: -
6Complete each step, then write the final answer.
A bracelet has 2 red beads for every 5 white beads. How many white beads go with 8 red beads?
Show your workHint What number times 2 makes 8? Multiply the white beads by that number.
Final answer:
Explain your thinkingHow did you find each new row in the pancake ratio table? If someone asked for 10 batches instead of 4, would counting up by adding 2 and 3 each row still be a fast way to find the answer?
Sentence starter I found the 4-batch row by multiplying ___ and ___ by ___, which is faster than adding ___ and ___ over and over ___ times.