Math lesson plan · 1st grade (Year 2 in England) · 45 minutes
One hour later, one hour earlier
Measurement
CCSS 1.MD.B.3England: Y1 MeasurementEngland: Y2 Measurement
Objective and success criteria
Students will: One hour later, one hour earlier.
- 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: Tell the time to the half hour
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 · 5 min
- Quick retrieval from earlier learning (Tell the time to the half hour). Students answer on mini whiteboards.
- Show answers together and note who needs support in the main task.
Hook · 5 min
- Ask the class to estimate the length of the room or the weight of a bag before measuring it.
- Share the objective: One hour later, one hour earlier. Read the success criteria together.
I do: model it · 10 min
- Work through the example out loud, saying why you do each step, not just what you do.
- Example: Hana goes to a party that starts at 4:00 and lasts 2 hours. When does it end? Type it like 4:30.
- Step 1: 4:00 + 2 h = 6:00
- Answer: 6:00
- Pause after each step and ask a student to say what comes next.
We do: guided practice · 10 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 goes to a film that starts at 2:30 and lasts 2 hours. When does it end? Type it like 4:30. → 4:30Prompt: Count on 2 hours from 2:30.
- Chloe goes to a football match that starts at 9:30 and lasts 2 hours. When does it end? Type it like 4:30. → 11:30Prompt: Count on 2 hours from 9:30.
You do: independent practice · 10 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 · 5 min
- Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
- Elena goes to a football match that starts at 10:30 and lasts 3 hours. When does it end? Type it like 4:30. → 1:30Prompt: Count on 3 hours from 10:30.
- Maya goes to a party that starts at 2:00 and lasts 3 hours. When does it end? Type it like 4:30. → 5:00Prompt: Count on 3 hours from 2:00.
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: Tell the time to the half hour.
- 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-1.
Free lesson plan from eurekami.com/lesson-plan-builder