Home/Second Grade Math/Lesson 28
K-5 friendly lesson
One small step at a time.Read the idea, try the activity, and celebrate each win as you go.

Identify even and odd numbers - up to 20

Let's team up! 🀝 Even numbers can be split into two equal teams with no one left out. Odd numbers always have one leftover. Let's learn the difference! 🎈

Do this: Read the concept below, then try the quiz or activity.

Lesson 28 of 186

Concept

An even number is a number that can be divided into two equal groups. An odd number is a number that has one left over when you try to divide it into two equal groups.

Visual Trick (Pairing Up):
*   Let's look at the number 6. Imagine 6 little monsters πŸ‘ΎπŸ‘ΎπŸ‘ΎπŸ‘ΎπŸ‘ΎπŸ‘Ύ. Can you pair them all up? Yes! (πŸ‘ΎπŸ‘Ύ) (πŸ‘ΎπŸ‘Ύ) (πŸ‘ΎπŸ‘Ύ). No one is left alone. So, 6 is an even number.
*   Now, let's look at the number 7. Imagine 7 little stars ⭐⭐⭐⭐⭐⭐⭐. Let's pair them up. (⭐⭐) (⭐⭐) (⭐⭐) ... oh wait! There's one star left all by itself. So, 7 is an odd number.
Number Trick (Look at the Last Digit):
*   Even numbers end in 0, 2, 4, 6, or 8. (like 12, 18, 20)
*   Odd numbers end in 1, 3, 5, 7, or 9. (like 11, 15, 19)

Key Idea: Think about sharing fairly between two friends. If everyone gets the same amount with nothing left, the number is even. If there's one piece left over, the number is odd.

Try it

Practice: Identify even and odd numbers - up to 20.

Complete & Continue β†’