Prime and Composite Numbers

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Objective

I can sort numbers from 1 to 100 into prime numbers and composite numbers.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

Define what a prime number is in your own words. Give an example of a prime number between 1 and 10.

2

Define what a composite number is in your own words. Give an example of a composite number between 1 and 10.

Part 3 of 3

Exit ticket

Quick comprehension check

Is the number 17 prime or composite? Show your math thinking to prove your answer. Is the number 39 prime or composite? Show your math thinking to prove your answer. Is the number 47 prime or composite? Show your math thinking to prove your answer.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

  • Slides

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