Lesson 7.27.2 Small Group · Group 1
Start hereWords, worked example, and sentence starters
Learning target With my small group, I can place rational numbers, including fractions and decimals, on a number line — one step at a time, with support.
Why This Matters This is your support small group for Lesson 7.2. We're going to slow this down and build it together, one step at a time. You can ask a question any time — that's what this group is for.
Start hereWords for this lesson
Read each word before you begin. Say it out loud.
| Word | What it means | Example |
|---|---|---|
| Rational numberSpanish: Número racional | A number that can be written as a fraction of two integers, with a bottom number that is not zero. | −3/4, 0.5, 7, −2.85 |
| FractionSpanish: Fracción | A number that shows part of a whole, like 3/4. | 3/4 of a cup |
| DecimalSpanish: Decimal | A number with a dot, like 0.5, that shows a part less than one. | 0.5 is half of one |
| Number lineSpanish: Recta numérica | A straight line where numbers are placed in order; numbers get smaller to the left and larger to the right. | left is less, right is more |
| EquivalentSpanish: Equivalente | Having the same value, just written a different way. | 1/2 = 0.5 |
| IntegerSpanish: Número entero | Whole numbers and their opposites, like -2, -1, 0, 1, 2. | ..., -3, -2, -1, 0, 1, 2, 3, ... |
How it worksWorked example
These numbers are not on your problems. The steps are. Follow them with your own numbers.
Plot 1.5 and −3.5 on a number line.
- Mark the integers from −4 to 4.
- Split each gap into halves.
- 1.5 is halfway between 1 and 2. −3.5 is halfway between −4 and −3.
Answer: 1.5 is right of 0; −3.5 is left of 0
Now you trySame steps, your turn
The steps are the same as the worked example. The numbers are yours. Do the work.
Plot 0.75 on a number line.
Say it and write itSentence starters
Finish each sentence out loud with a partner. Then use them in your writing.
- The number is rational because it can be written as .
- On the number line, falls between and .
- I split each unit into equal parts because .
- The opposite of is , so it sits to the of zero.
Word bank rational numberfractiondecimaloppositenumber lineintegerbetweenequal partsdenominatorabovebelowzero
Watch out!A common mistake
A common mistake in Rational Numbers on the Number Line is treating the numerator and denominator of a negative fraction as two separate whole numbers instead of one value between two integers
Lesson 7.27.2 Small Group · Group 1
Group 1Supported practice
Learning target With my small group, I can place rational numbers, including fractions and decimals, on a number line — one step at a time, with support.
Why This Matters This is your support small group for Lesson 7.2. We're going to slow this down and build it together, one step at a time. You can ask a question any time — that's what this group is for.
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1Complete each step, then write the final answer.
Find the two integers around −1.5. Plot −1.5 on a number line.
- 1Is −1.5 to the left or right of 0?
- 2Which integer is just to the right of −1.5?
- 3Which integer is just to the left of −1.5?
- 4The .5 means one half. Where does the dot go?
Final answer: -
2Complete each step, then write the final answer.
Start at 0. Count parts to the left. Plot −3/4 on a number line.
- 1Which two integers is −3/4 between?
- 2How many equal parts do we split 0 to −1 into?
- 3Start at 0. How many parts do you count to the left?
Final answer: -
3Complete each step, then write the final answer.
A point is halfway between 2 and 3. What number is it?
Show your workHint Halfway means one half of a unit past 2.
Final answer: -
4Complete each step, then write the final answer.
Each space is one fourth of a unit. Point A is on the number line. What number is at point A? Write a decimal.
Show your workHint Start at −3. Count the small spaces to point A. Each space is 0.25.
Final answer: -
5Complete each step, then write the final answer.
At night, the temperature was −6.5°C. Which integer is just to the left of −6.5 on a number line?
Show your workHint Left means farther from 0 for a negative number.
Final answer: -
6Circle the letter of the best answer. Show how you know.
Ray says −4.5 goes halfway between −4 and −3. Is he right? Where does −4.5 go?
- AHalfway between −5 and −4
- BHalfway between −4 and −3
- CHalfway between 4 and 5
- DAt −45
Hint Is −4.5 more than 4 units from 0, or less?
Show your work
Explain your thinkingHow do you find the two integers a negative decimal is between? Use −1.5 or −6.5 to explain.
Sentence starter −6.5 is between ___ and ___. · I put the dot ___ because ___.