Operations with Fractions
๐ฏ Objective
Students will learn to add, subtract, multiply, and divide fractions.
๐ Materials
- Whiteboard and markers
- Fraction manipulatives (e.g., fraction circles)
- Worksheets with operation problems (e.g., 1/2 + 1/4, 3/5 ร 2/3)
- (For calculation practice, try the Fraction Calculator.)
- (Visualizing operations? See our Visual Fraction Models.)
๐ Instructions
- Review types of fractions briefly.
- Teach addition/subtraction: Same denominator (add/subtract numerators, e.g., 1/4 + 2/4 = 3/4), Different denominators (find common denominator, e.g., 1/2 + 1/3 -> 5/6).
- Teach multiplication: Multiply numerators, then denominators (e.g., 2/3 ร 3/4 = 6/12).
- Teach division: Multiply by the reciprocal (e.g., 2/3 รท 1/2 = 2/3 ร 2/1 = 4/3).
- Show operations with manipulatives (e.g., combine 1/2 and 1/4 circles).
- Pair students to solve problems on the whiteboard.
- Hand out worksheets for individual practice.
๐ Activities
Fraction Operation Bingo
Students solve problems (e.g., 1/3 + 1/6) to mark bingo cards with answers.
Fraction Relay Race
Teams solve operation problems at stations (e.g., subtract 2/5 from 4/5).
โ Assessment
- Watch students during activities for correct steps.
- Review worksheets for accurate solutions.