Grade 3 | MATHEMATICS TEACHER GUIDE
Parent and teacher use only. This guide accompanies the Grade 3 Mathematics-only student workbook. Keep these answers separate until work is complete.
Mathematics | Answer Key
- 1. 6×4=24
- 2. 56; e.g. 7x(5+3)
- 3. 54
- 4. 6
- 5. 7
- 6. 40 cm^2
- 7. 40 pencils
- 8. 8×7=56 therefore 56/8=7
- 9. 48 sq ft
- 10. Factor pairs (1,48),(2,24),(3,16),(4,12),(6,8)
Teach, Assess, Reteach
Check every answer and require students to explain at least one method. Record independent, guided, or reteach. Verify understanding with new numbers rather than repeating an answer the student memorized. Accelerate by prerequisite mastery, not age. This is only the first unit of the grade’s mathematics program.
Open the fuller five-day Grade 3 Mathematics teacher guide.
Grade 3 Mathematics | Five-Day Extension Teacher Guide
Teach each concept explicitly and model methods before assigning independent problems. Keep answers separate from student work. Require units, diagrams and reasoned justification as appropriate.
Day 1: Multiplication with Arrays | Answer Key
- 1. 42
- 2. 36
- 3. 40 stickers
- 4. 35 + 21 = 56
Day 2: Division and Equal Groups | Answer Key
- 1. 6
- 2. 7
- 3. 9 boxes
- 4. 9 × 7 = 63
Day 3: Fractions on a Number Line | Answer Key
- 1. 1/4 + 1/4 + 1/4
- 2. 1/2 is greater
- 3. 1/2
- 4. 3/5
Day 4: Perimeter and Area | Answer Key
- 1. 16 cm
- 2. 15 square cm
- 3. 24 m
- 4. 36 square units
Day 5: Independent Chapter Check | Answer Key
- 1. 72
- 2. 9
- 3. 3/4 is greater
- 4. 40 square cm; 26 cm
Feedback and Assessment
Record which methods the learner used independently. If a skill is missed, reteach with a concrete or visual representation, guide a parallel example, then give an unfamiliar independent question. This is a formative unit assessment, not a standardized grade-level examination.