Grade 4 | MATHEMATICS TEACHER GUIDE
Parent and teacher use only. This guide accompanies the Grade 4 Mathematics-only student workbook. Keep these answers separate until work is complete.
Mathematics | Answer Key
- 1. 276
- 2. 510
- 3. 368
- 4. 768
- 5. 3/4
- 6. 12/20
- 7. 5/6 > 3/4
- 8. 5/6
- 9. 42 cm
- 10. Use 42×17=42x(10+7)=420+294=714
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.
Grade 4 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 by Two-Digit Factors | Answer Key
- 1. 312
- 2. 432
- 3. 945
- 4. 252 pencils
Day 2: Multi-Digit Division | Answer Key
- 1. 12
- 2. 24
- 3. 25
- 4. 12 packs
Day 3: Equivalent Fractions | Answer Key
- 1. 8/20
- 2. 3/4
- 3. 5/6 > 3/4
- 4. 3/4
Day 4: Angles and Perimeter | Answer Key
- 1. 55°
- 2. 180°
- 3. 42 cm
- 4. 9 cm
Day 5: Independent Check | Answer Key
- 1. 714
- 2. 26
- 3. 12/20
- 4. 38 units; 84 square units
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.