7adv.MATH.3.B | Texas Essential Knowledge and Skills (TEKS)

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previous understandingsoperationsproblemsadditionsubtractionmultiplicationdivisionrational numbers

apply previous understandings (of operations with rational numbers) #dok2
solve problems (using addition, subtraction, multiplication, and division of rational numbers) #dok2
extend previous understandings (to situations with rational numbers in new contexts) #dok3
justify solutions (for problems involving rational number operations) #dok3

I can use what I know about operations to solve problems with rational numbers. #dok2
I can identify which operation to use when solving a problem with rational numbers. #dok2
I can solve problems that require adding, subtracting, multiplying, or dividing rational numbers. #dok2
I can explain my reasoning when applying operations to rational numbers in new scenarios. #dok3
I can connect new problem types to previous operations with rational numbers. #dok3

Understanding rational number operations allows students to solve a wide variety of real-world and mathematical problems.
Extending previous knowledge helps students build confidence and fluency in working with more complex rational number situations.

How can your previous knowledge of number operations help you solve problems involving rational numbers?
What strategies do you use to decide whether to add, subtract, multiply, or divide in a given problem?
How do different rational number operations change the value of an expression or solution?
Why is it important to justify and explain your choice of operations when solving problems with rational numbers?
In what ways can rational number operations appear in real-world situations?