Math lesson plan · 3rd grade (Year 4 in England) · 60 minutes
Divide by 6, 7 and 9
Multiplication and division
CCSS 3.OA.C.7CCSS 3.OA.B.6England: Y4 Multiplication and division
Objective and success criteria
Students will: Divide by 6, 7 and 9.
- I can answer questions on today's skill on my own, without help.
- I can explain each step and say why it works.
- I can check my answer and spot a mistake.
Before and after
Needs first: Divide by 3, 4 and 8; The 6 times table; The 7 times table
Leads to: Divide a two-digit number by a one-digit number
Materials: Counters for arrays, Multiplication grid, Base-ten blocks, Mini whiteboards and pens, Printed student sheet (below).
Warm-up · 6 min
- Quick retrieval from earlier learning (Divide by 3, 4 and 8; The 6 times table; The 7 times table). Students answer on mini whiteboards.
- Show answers together and note who needs support in the main task.
- 21 ÷ 3 = ? → 7Prompt: 3 times what makes 21?
- 6 × 7 = ? → 42Prompt: Count in 6s, 7 times.
- 8 × 7 = ? → 56Prompt: Count in 7s, 8 times.
Hook · 6 min
- Show an array of chairs, eggs or windows and ask how many there are without counting one by one.
- Share the objective: Divide by 6, 7 and 9. Read the success criteria together.
I do: model it · 12 min
- Work through the example out loud, saying why you do each step, not just what you do.
- Example: 45 ÷ 9 = ?
- Step 1: 9 × 5 = 45
- Step 2: 45 ÷ 9 = 5
- Answer: 5
- Pause after each step and ask a student to say what comes next.
We do: guided practice · 12 min
- Do these together. Students try each step on whiteboards before you reveal it.
- Use the hints as prompts rather than giving the answer.
- 81 ÷ 9 = ? → 9Prompt: 9 times what makes 81?
- __ ÷ 9 = 7 → 63Prompt: Multiplication undoes division.
You do: independent practice · 17 min
- Students work on the student sheet. Circulate and check the first two answers of every student early.
- Students who finish: write a question of their own for a partner, with the answer.
The 8 questions are on the student sheet below, with answers in the key.
Exit ticket · 7 min
- Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
- __ ÷ 9 = 3 → 27Prompt: Multiplication undoes division.
- 27 ÷ 9 = ? → 3Prompt: 9 times what makes 27?
Watch out for
- Thinking multiplying always makes a number bigger.
- Dropping a zero in long multiplication when moving to the tens row.
Support and stretch
Support
- Review first: Divide by 3, 4 and 8.
- Use concrete materials: counters for arrays.
- Give the first step of each question, or a partly worked example to finish.
- Pair with a confident partner for the guided practice.
Stretch
- Move on to: Divide a two-digit number by a one-digit number.
- Explain a common mistake in writing and how to fix it.
- Write a word problem that uses today's skill, then solve a partner's.
Homework and more practice
Free online practice with hints and printable worksheets for this skill: eurekami.com/math/grade-3.
Free lesson plan from eurekami.com/lesson-plan-builder