Answer Key — HSN.RN.A.1

For parents and tutors

Do not share with students before practice tests.

Practice Problems — Sets 1–10

| Set | Guidance | | --- | --- | | Set 1 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 2 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 3 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 4 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 5 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 6 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 7 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 8 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 9 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 10 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. |

Practice Problems — Sets 11–20

| Set | Guidance | | --- | --- | | Set 11 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 12 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 13 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 14 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 15 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 16 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 17 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 18 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 19 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. | | Set 20 | Explain how the definition of the meaning of rational exponents follo… — verify written work and accept reasonable drawings. |

Review tiers 1–10

• Checklists are parent-judged.
• Written items: verify against practice set patterns.
• Standard text: Explain how the definition of the meaning of rational exponents follows from extending the properties of integer exponents to those values, allowing for a notation for radicals in terms of rational exponents. For example, we define 51/3 to be the cube root of 5 because we want (51/3)3 = 5(1/3)3 to hold, so (51/3)3 must equal 5.

Practice test scoring

| Tier | Pass guidance | | --- | --- | | 1–3 | Most oral tasks smooth; majority of written correct | | 4–6 | 7/10+ total with clear understanding | | 7–8 | 9/12+ with explanations | | 9–10 | Near-perfect; ready to move on |

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