6.NOS.1
Lesson 6-2-part2
Apply Day · Set B
MASTERY CHECK
☐ Exceeds☐ Meets Target☐ Needs Practice
6.2 · Part II
Second Practice Form · Independent Application and Spiral Review
Divide Fractions · Dividend
■ ADVANCED CONCEPT ANCHOR: 6.2 · Part II
1Dividing Fractions Algorithm (Keep, Change, Flip)
2The Structural Procedure
- Keep the first fraction unchanged
- Change the division symbol (÷) to multiplication (×)
- Flip the second fraction to its reciprocal (d/c), then multiply across and simplify
3Mathematical Word Bank
- Divide Fractions (Dividir fracciones) — Multiply the first fraction by the reciprocal of the second fraction.
- Dividend (Dividendo) — The total number being divided into equal groups (the number inside the division bracket).
- Divisor (Divisor) — The number of equal groups you are dividing into (the number outside the division bracket).
- Reciprocal (Recíproco) — A fraction turned upside down.
- Quotient (Cociente) — The answer when you divide.
- Simplify (Simplificar) — To write a fraction with smaller numbers that names the same amount, like 2/4 = 1/2.
4Watch out
- A common mistake in Divide Fractions is flipping the wrong fraction: students flip the dividend (the first fraction) instead of the divisor (the second fraction). For example, solving 3/4 ÷ 5/8 by flipping 3/4 to 4/3 and keeping 5/8 gives 4/3 × 5/8 = 20/24 = 5/6 — but only the divisor gets flipped. Keep 3/4, change ÷ to ×, and flip only the divisor 5/8 to its reciprocal 8/5: 3/4 × 8/5 = 24/20 = 6/5. Before you submit, check that the fraction you kept (the dividend) is still facing the same way it started.
SECTION 1
CONCEPTUAL UNDERSTANDING & VISUAL MODELS
[Visual Modeling]
-
1 MULTIPLE CHOICE
(Lesson 6.1) Which expression means 'how many 1/3-size pieces are in 2'?
- A2 ÷ 1/3
- B2 × 1/3
- C1/3 ÷ 2
- D2 + 1/3
✏️ Workspace & Solution Steps
SECTION 2
COMPUTATION & PROCEDURAL FLUENCY
[Show Every Step]
-
2 MULTIPLE CHOICE
What is (2/3) ÷ (4/9)?
- A3/2
- B8/27
- C2/3
- D9/4
Write any whole number over 1Keep · Change · FlipMultiply acrossSimplify · label the units -
3 MULTIPLE CHOICE
What is (5/6) ÷ (5/12)?
- A2
- B1/2
- C25/72
- D12/5
Write any whole number over 1Keep · Change · FlipMultiply acrossSimplify · label the units -
4 MULTIPLE CHOICE
What is 1/2 ÷ 1/4?
- A2
- B1/8
- C4
- D1/2
✏️ Workspace & Solution Steps -
5 MULTIPLE CHOICE
What is 3/4 ÷ 1/8?
- A6
- B3/32
- C8/3
- D24
✏️ Workspace & Solution Steps
SECTION 3
REAL-WORLD CONTEXTS & PROBLEM SOLVING
[Applications]
-
6 MULTIPLE CHOICE
(Lesson 6.9) What is 6 ÷ 1/3?
- A18
- B2
- C6/3
- D3
✏️ Workspace & Solution Steps -
7 MULTIPLE CHOICE
What is the reciprocal of 3/5?
- A5/3
- B3/5
- C5/5
- D1/3
Rewrite each fractionWork it outSimplify
📐 CER MATHEMATICAL PROOF MATRIX (CER 2.0)
SMP.3 / Proof & Justification
Writing Task: Justify why your mathematical solution is accurate and complete.
C Claim
State your direct mathematical answer/claim with units.
E Evidence
Cite exact numbers, calculations, dimensions, or graph data.
R Reasoning
Explain the mathematical theorem, property, or definition connecting evidence to claim.