Math lesson plan · 2nd grade (Year 3 in England) · 30 minutes
Give change from one dollar or one pound
Measurement
CCSS 2.MD.C.8England: Y2 MeasurementEngland: Y3 Measurement
Objective and success criteria
Students will: Give change from one dollar or one pound.
- 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: Count coins up to one dollar or one pound; Pairs of numbers that make 100
Leads to: the next skill in this area.
Materials: Rulers, scales and measuring jugs, Clock faces, Conversion chart, Mini whiteboards and pens, Printed student sheet (below).
Warm-up · 4 min
- Quick retrieval from earlier learning (Count coins up to one dollar or one pound; Pairs of numbers that make 100). Students answer on mini whiteboards.
- Show answers together and note who needs support in the main task.
- 90 + __ = 100 → 10Prompt: 9 tens and how many more tens make 10 tens?
- 30 + __ = 100 → 70Prompt: 3 tens and how many more tens make 10 tens?
- 80 + __ = 100 → 20Prompt: 8 tens and how many more tens make 10 tens?
Hook · 3 min
- Ask the class to estimate the length of the room or the weight of a bag before measuring it.
- Share the objective: Give change from one dollar or one pound. Read the success criteria together.
I do: model it · 7 min
- Work through the example out loud, saying why you do each step, not just what you do.
- Example: Leo buys a postcard for 40¢ and pays with $1. How much change, in cents?
- Step 1: 100 − 40 = 60
- Step 2: 60¢
- Answer: 60
- Pause after each step and ask a student to say what comes next.
We do: guided practice · 6 min
- Do these together. Students try each step on whiteboards before you reveal it.
- Use the hints as prompts rather than giving the answer.
- Ava buys a postcard for 25¢ and pays with $1. How much change, in cents? → 75Prompt: $1 is 100 cents.
- Count up to find the change from $1 for something that costs 71¢. How much change, in cents? → 29Prompt: From 71 to the next ten, 80.
You do: independent practice · 7 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 6 questions are on the student sheet below, with answers in the key.
Exit ticket · 3 min
- Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
- Daniel buys a bookmark for 35¢ and pays with $1. How much change, in cents? → 65Prompt: $1 is 100 cents.
- Count up to find the change from $1 for something that costs 56¢. How much change, in cents? → 44Prompt: From 56 to the next ten, 60.
Watch out for
- Measuring from the end of the ruler instead of zero.
- Converting units the wrong way (multiplying instead of dividing).
Support and stretch
Support
- Review first: Count coins up to one dollar or one pound.
- Use concrete materials: rulers, scales and measuring jugs.
- Give the first step of each question, or a partly worked example to finish.
- Pair with a confident partner for the guided practice.
Stretch
- 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-2.
Free lesson plan from eurekami.com/lesson-plan-builder