Math lesson plan · Kindergarten (Reception and Year 1 in England) · 45 minutes
Sort, count and compare groups
Statistics and probability
CCSS K.MD.B.3England: Reception Number
Objective and success criteria
Students will: Sort, count and compare groups.
- 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: Sort things: which one does not belong?; Count pictures from 6 to 10
Leads to: the next skill in this area.
Materials: Squared paper for charts, Class survey data, Sticky notes for a live chart, Mini whiteboards and pens, Printed student sheet (below).
Warm-up · 5 min
- Quick retrieval from earlier learning (Sort things: which one does not belong?; Count pictures from 6 to 10). Students answer on mini whiteboards.
- Show answers together and note who needs support in the main task.
- Which one does not belong? hat, sheep, duck, dog (hat / sheep / duck / dog) → hatPrompt: What do most of them have in common?
- How many triangles are there? ▲ ▲ ▲ ▲ ▲ ▲ → 6Prompt: The top line has 5. Start at 5 and keep counting.
- Sort these into clothes and animals: sock, dog, scarf, sock, shirt, horse. How many are clothes? → 4Prompt: Go through the list one at a time.
Hook · 5 min
- Take a quick class survey (favorite fruit, travel to school) and ask what the results tell us.
- Share the objective: Sort, count and compare groups. 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: Sort the shapes. Which kind is there the most of? ▲ ▲ ▲ ▲ ♥ ■ ■ ▲ ■ ■ ▲ ♥
- Step 1: ▲: 6, ♥: 2, ■: 4
- Step 2: ▲
- Answer: ▲
- 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.
- Sort the shapes. Which kind is there the fewest of? ♥ ♥ ● ● ♥ ♥ ◆ ● ♥ ◆ ♥ (◆ / ● / ♥) → ◆Prompt: Count each kind of shape separately.
- How many more ■ than ♥ are there? ■ ■ ♥ ■ ■ ■ ■ ♥ ■ ■ → 6Prompt: Count each kind first.
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.
- Sort the shapes. Which kind is there the most of? ■ ■ ▲ ■ ■ ● ■ ■ ● ▲ ● (● / ▲ / ■) → ■Prompt: Count each kind of shape separately.
- How many more ◆ than ■ are there? ◆ ◆ ■ ■ ◆ → 1Prompt: Count each kind first.
Watch out for
- Forgetting to put data in order before finding the median.
- Reading a bar's height wrongly when the scale goes up in 2s or 5s.
Support and stretch
Support
- Review first: Sort things: which one does not belong?.
- Use concrete materials: squared paper for charts.
- 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/kindergarten.
Free lesson plan from eurekami.com/lesson-plan-builder