Unit 4: Fractions & Decimals
Target 344.NF.B.3a–cCh 7: Subtraction Target
I can subtract fractions with like denominators.
Standard cap: 4 - Analyze errors or solve missing-value fraction subtraction.
Subskills what students must be able to do
- 1I can model subtraction as separating parts from the same whole.
- 2I can subtract fractions with the same denominator.
- 3I can explain why the denominator stays the same.
Proficiency Scale & ⚓️ Tasks
1 → 4 proficiency scale
1Beginning
“Show 6/8 − 2/8 with a model.”
2Developing
“Solve 6/8 − 2/8.”
3Proficient
“Solve 11/12 − 5/12 and explain your reasoning.”
4Advanced
“Find the missing fraction: 7/8 − ___ = 3/8. Solve it in more than one way and explain.”
Teach
Lessons and videos that introduce the skill6Engage NY Lesson (3)
Engage NY Lesson
Lesson 16 — Add and subtract fractions: visual models
Grade 4 · Module 5 · Topic D · Lesson 16
Engage NY
Engage NY Lesson
Lesson 17 — Add and subtract fractions with same units
Grade 4 · Module 5 · Topic D · Lesson 17
Engage NY
Engage NY Lesson
Lesson 18 — Add and subtract more than two fractions
Grade 4 · Module 5 · Topic D · Lesson 18
Engage NY