3rd Grade · Math · 3.NF.A.3, 3.NF.A.1
Fractions Lesson Plan for 3rd Grade
A ready-to-teach fractions lesson for 3rd Grade. Everything below is classroom-tested structure: an objective, a 45-minute sequence, a way to check who got it, and 6 printable practice pages.
Approximately 45 minutes
Learning objective
- Add fractions with the same denominator to find the sum
- Write fraction addition equations and simplify results
- Solve addition problems with proper fractions on a number line
Materials
- Comparing fractions - Red leaf
- Simplifying proper and improper fractions - Cactus
- Simplifying proper fractions - Tea
- Adding fractions with like denominators (2-12) - Squid
- Comparing fractions (same denominators) - Leaves
- Comparing fractions (same denominators) - Orange Leaf
- Pencils, and whiteboard space for the modeled examples
Lesson steps
1. Warm up together (5 min)
Start concrete: fold a strip of paper, share something unequally, and ask whether it was fair. fractions lands far better after a fairness argument than after a definition.
2. Model it (I do) (10 min)
Draw fractions before you write it. Show the same quantity as a picture and as notation side by side, and name which one students should reach for when stuck.
3. Practice together (we do) (10 min)
Work three more problems as a class. Ask a different student to supply each step rather than the whole answer. If a step stalls, drop back to concrete objects or a drawing before moving on.
4. Independent practice (you do) (15 min)
Hand out "Comparing fractions - Red leaf". Students work independently while you circulate. Note who is fluent, who is counting on fingers, and who has not started, because that grouping drives tomorrow's small group.
5. Close the loop (5 min)
Pull the class back. Ask one student to explain a problem they got right and one to name something that is still confusing. End on the confusion, not the success, so students learn that naming a gap is normal.
Check for understanding
Collect the practice pages and sort them into three piles: fluent, developing, and not yet. Any student in the third pile needs fractions retaught in a small group before the class moves on.
Differentiation
Extra support. Students who stall: pull them into a small group and rebuild fractions with concrete materials or a simpler text before asking for the written work again. Do not send the page home as homework, it will just rehearse the misunderstanding.
Extension. Students who finish early: ask them to write their own fractions problem for a partner to solve, then check the partner's work. Creating a problem is harder than solving one and it surfaces whether they really understand fractions.
Skills covered in this lesson
Adding fractions · Comparing fractions · Proper fractions · Simplifying fractions
