Grade 6 Mathematics · Unit 8: Equations & InequalitiesStandard 6.AT.9

Lesson 8.48.4 Small Group · Group 1

Start hereWords, worked example, and sentence starters

Name Date Period

Learning target With my small group, I can write inequalities to represent real-world situations — one step at a time, with support.

Why This Matters This is your support small group for Lesson 8.4. 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.

WordWhat it meansExample
InequalitySpanish: Desigualdad A math sentence that compares two sides with <, >, ≤, or ≥. x ≥ 18
Greater thanSpanish: Mayor que The > sign, showing one number is bigger. 8 > 3 — eight is larger than three
Less thanSpanish: Menor que The < sign, showing one number is smaller. 2 < 7 — two is smaller than seven
At least / At mostSpanish: Al menos / A lo más 'At least' means ≥. 'At most' means ≤. 'At least 10 players' → p ≥ 10 (could be 10, 11, 12, ...); 'At most 5 tries' → t ≤ 5 (could be 5, 4, 3, ...)
VariableSpanish: Variable A letter that stands for a number that is unknown or can change. the x in x ≥ 18
No more thanSpanish: No más de A phrase meaning less than or equal to (≤). “No more than 8 people” means people ≤ 8.

How it worksWorked example

These numbers are not on your problems. The steps are. Follow them with your own numbers.

A van can carry at most 8 riders. Write an inequality for r, the riders.

  1. Key words: “at most.” Is 8 allowed? Yes.
  2. “At most” means less than or equal to: r ≤ 8.
  3. Test: 8 works, 5 works, 9 does not.

Answer: r ≤ 8

Now you trySame steps, your turn

The steps are the same as the worked example. The numbers are yours. Do the work.

Clue: "A bag holds fewer than 10 items." Write an inequality for the number of items.

Answer:

Say it and write itSentence starters

Finish each sentence out loud with a partner. Then use them in your writing.

  • The phrase tells me the symbol is .
  • My inequality is because .
  • The value (is / is not) a solution because .
  • This inequality has many solutions because .

Word bank inequalityat leastat mostmore thanless thangreater thansymbolconstraintvariablesolutionboundaryrange

Watch out!A common mistake

A common mistake in Write Inequalities is using a strict symbol (> or <) for a phrase that actually includes the boundary value. For 'the suspect is at least 18 years old,' students often write a > 18 instead of the correct a ≥ 18

Grade 6 Mathematics · Unit 8: Equations & InequalitiesStandard 6.AT.9

Lesson 8.48.4 Small Group · Group 1

Group 1Supported practice

Mastery check☐ Exceeds☐ Meets target☐ Needs practice
Name Date Period

Learning target With my small group, I can write inequalities to represent real-world situations — one step at a time, with support.

Why This Matters This is your support small group for Lesson 8.4. 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.

  1. 1Complete each step, then write the final answer.
    HeightCan ride?
    54 in.?
    Is exactly 54 inches allowed?

    Clue: "Riders must be at least 54 inches tall." Write an inequality for a rider's height h.

    1. 1What does "at least 54" mean?
    2. 2Can a rider be exactly 54 inches tall? Which symbol do we use?
    3. 3Write the inequality.
    Final answer:
  2. 2Complete each step, then write the final answer.
    WeightAllowed?
    15 lb?
    Is exactly 15 pounds allowed?

    Clue: "A backpack can weigh at most 15 pounds." Write an inequality for the weight w.

    1. 1What does "at most 15" mean?
    2. 2Can the backpack weigh exactly 15 pounds?
    3. 3Which symbol do we use?
    4. 4Write the inequality.
    Final answer:
  3. 3Complete each step, then write the final answer.

    The temperature is less than 30 degrees. Which symbol goes in the box: t ☐ 30?

    Show your work

    Hint "Less than 30" does not include 30.

    Final answer:
  4. 4Complete each step, then write the final answer.

    A theater holds no more than 250 people. Which symbol goes in the box: p ☐ 250?

    Show your work

    Hint "No more than 250" means the number cannot go over 250. Can exactly 250 people come in?

    Final answer:
  5. 5Complete each step, then write the final answer.

    Yuzuki wants to earn more than $60 to buy a game. Write an inequality for her earnings e. Which symbol goes in the box: e ☐ 60?

    Show your work

    Hint "More than 60" means greater than 60. Is 60 itself included?

    Final answer:
  6. 6Complete each step, then write the final answer.

    A team needs at least 10 players. Tom writes s > 10. Is he right? Which symbol should go in the box: s ☐ 10?

    Show your work

    Hint Can the team play with exactly 10 players? Does > include 10?

    Final answer:

Explain your thinkingWhy does "at least 10" use ≥, but "more than 10" uses >? Talk about the number 10.

Sentence starter "At least" ___ the number, so I use ___. · "More than" does not include ___, so I use ___.

3-Point Exit Checklist: ☐ 1. Units & Labels Verified ☐ 2. Mathematical Reasoning Stated ☐ 3. Calculations Double-Checked
How did it go? ☐ 4 · I can teach it☐ 3 · I've got it☐ 2 · I need a hint☐ 1 · I need help