OAT Lesson 16: Interpreting Inequalities
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Last updated about 3 years ago
19 Nsɛmmisa
Develop Understanding
Today's Learning Goal: (G6, U7, L10)
Critique (orally and in writing) possible values given for a situation with more than one constraint, including whether fractional or negative values are reasonable.
Interpret unbalanced hanger diagrams (orally and in writing) and write inequality statements to represent relationships between the weights on an unbalanced hanger diagram.
Write and interpret inequality statements that include more than one variable.
Today's Materials:
Laptop
Laptop charger
Pen/Pencil/Paper/Expo Marker (optional)
Please complete the Jump Start (activator). You have 5 minutes before we review. This is independent it should be silent.
Reminders:
1. Ready for class
2. No cellphones
3. Volume must be low.
4. Read and follow all directions
5.) Take your bag off and immediately begin the Activator.
Is each equation true or false? Be prepared to explain your reasoning.
I do (question
We do (question
You do (question)
There is a closed carton of eggs in Mai's refrigerator. The carton contains eggs, and it can hold 12 eggs.
What does the inequality e < 12 mean in this context?
What does the inequality e >0 mean in this context?
What are some possible values of that will make both e < 12 and e > 0 true?
Here is a diagram of an unbalanced hangar:
Write an inequality to represent the relationship of the weights. Use "s" to represent the weight of the square in grams and to represent the weight of the circle in grams.
One red circle weighs 12 grams. Write an inequality to represent the weight of one blue square.
Could 0 be a value of "s"? Explain your reasoning.s" ? Explain your reasoning.
Graph: :
s > 12
What does 15 < n mean in the context of the basketball game?
What does n < 25 mean in the context of the basketball game?
Draw two numbers lines to represent the solutions to the two inequalities
Name a possible value for that is a solution to both inequalities
Name a possible value for that is a solution to 15 < n, but not a solution to n < 25
Can -8 be a solution to n in this context? Explain your reasoning.
Write an inequality to represent her statement. Let be the weight of one pentagon and be the weight of one circle.
A circle weighs 12 ounces. Use this information to write another inequality to represent the relationship of the weights. Then, describe what this inequality means in this context.
(Use this diagram for questions 12-15)
Write an inequality to represent the relationship of the weights. Let be the weight of one pentagon and be the weight of one square.
One pentagon weighs 8 ounces. Use this information to write another inequality to represent the relationship of the weights. Then, describe what this inequality means in this context.
Graph the solutions to this inequality on a number line.
Based on your work so far, can you tell the relationship between the weight of a square and the weight of a circle? If so, write an inequality to represent that relationship. If not, explain your reasoning.
