Math lesson plan · 1st grade (Year 2 in England) · 60 minutes
Growing patterns: the same amount added each step
Algebra
CCSS 1.OA.C.5England: Y1 Number and place value
Objective and success criteria
Students will: Growing patterns: the same amount added each step.
- 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: Find the missing piece of a pattern; Add within 20
Leads to: Find the rule of a number pattern
Materials: Balance scales or a balance drawing, Algebra tiles, Function machine cards, Mini whiteboards and pens, Printed student sheet (below).
Warm-up · 6 min
- Quick retrieval from earlier learning (Find the missing piece of a pattern; Add within 20). Students answer on mini whiteboards.
- Show answers together and note who needs support in the main task.
- Which shape is missing? ♥ ♥ ★ ♥ ♥ ★ ♥ ? ★ (♥ / ★ / ■) → ♥Prompt: Find the part that repeats.
- Which shape is missing? ▲ ◆ ◆ ? ◆ ◆ ▲ ◆ ◆ (▲ / ◆ / ★) → ▲Prompt: Find the part that repeats.
- Which shape is missing? ♥ ▲ ■♥ ? ■♥ ▲ ■(♥ / ▲ / ■/ ★) → ▲Prompt: Find the part that repeats.
Hook · 6 min
- Show a "think of a number" puzzle and ask the class to work out the starting number.
- Share the objective: Growing patterns: the same amount added each step. 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: What number comes next? 5, 9, 13, 17, __
- Step 1: The rule is add 4.
- Step 2: 17 + 4 = 21
- Answer: 21
- 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.
- What number comes next? 9, 13, 17, 21, __ → 25Prompt: How much bigger is each number than the one before?
- What number comes next? 9, 12, 15, 18, __ → 21Prompt: How much bigger is each number than the one before?
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.
- What number comes next? 9, 12, 15, 18, __ → 21Prompt: How much bigger is each number than the one before?
- What number comes next? 2, 7, 12, 17, __ → 22Prompt: How much bigger is each number than the one before?
Watch out for
- Doing an operation to one side of an equation but not the other.
- Reading 3x as 3 + x, or thinking x always stands for one particular number.
Support and stretch
Support
- Review first: Find the missing piece of a pattern.
- Use concrete materials: balance scales or a balance drawing.
- 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: Find the rule of a number pattern.
- 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