Let's Count by Tens!

Math Grades 1st Grade 1:35 Video
Print Lesson Plan Watch Video

Lesson Description

Learn to count by tens using ten frames and numbers! This lesson will help you understand how to count faster by grouping numbers into tens.

Video Resource

Counting by tens | Counting | Early Math | Khan Academy

Khan Academy

Duration: 1:35
Watch on YouTube

Key Concepts

  • Counting by tens
  • Ten frames as visual aids
  • Recognizing patterns in multiples of ten

Learning Objectives

  • Students will be able to count by tens to 100.
  • Students will be able to identify multiples of ten using ten frames.
  • Students will be able to relate counting by tens to adding ten repeatedly.

Educator Instructions

  • Introduction (5 mins)
    Begin by asking students if they know how to count by tens. Have a few students share what they know. Introduce the idea that counting by tens is a faster way to count many objects.
  • Video Viewing (5 mins)
    Watch the Khan Academy video "Counting by tens | Counting | Early Math | Khan Academy" (https://www.youtube.com/watch?v=UnPpFw3natI). Encourage students to pay attention to how the video uses ten frames to represent groups of ten.
  • Ten Frame Practice (10 mins)
    Use physical ten frames (or drawings) and counters. Have students build groups of ten. Start with one ten frame (10), then two (20), and so on, up to ten ten frames (100). As they build each group, have them say the number aloud: "Ten, twenty, thirty..."
  • Number Line Activity (10 mins)
    Use a number line that goes up to 100. Have students point to and say the numbers when counting by tens: 10, 20, 30, and so on.
  • Wrap-up (5 mins)
    Review the key concept of counting by tens. Ask students why counting by tens is helpful. Recap the numbers in the tens sequence (10, 20, 30...100).

Interactive Exercises

  • Counting by Tens Game
    Play a game where students take turns counting by tens, starting from 10. Each student says the next number in the sequence. If a student hesitates or makes a mistake, they are out, and the game continues until only one student remains.

Discussion Questions

  • What is your favorite way to count by tens?
  • Can you think of anything we use every day that comes in groups of ten?
  • Why is counting by tens easier than counting by ones when you have a lot of things?

Skills Developed

  • Counting
  • Number Recognition
  • Pattern Recognition
  • Addition (repeated addition)

Multiple Choice Questions

Question 1:

What number comes after 20 when you count by tens?

Correct Answer: 30

Question 2:

What is one group of ten?

Correct Answer: 10

Question 3:

Which of these numbers is NOT in the counting by tens sequence?

Correct Answer: 45

Question 4:

If you have 4 groups of ten, how many do you have?

Correct Answer: 40

Question 5:

Which of these is the biggest number?

Correct Answer: 50

Question 6:

What number comes right before 70 when counting by tens?

Correct Answer: 60

Question 7:

How many tens make 100?

Correct Answer: 10

Question 8:

Which picture shows counting by tens?

Correct Answer: 10, 20, 30, 40

Question 9:

What number is 3 tens?

Correct Answer: 30

Question 10:

What is the next number after 50 when counting by 10's?

Correct Answer: 60

Fill in the Blank Questions

Question 1:

10, 20, 30, ____

Correct Answer: 40

Question 2:

50, 60, ____, 80

Correct Answer: 70

Question 3:

90 is the same as 9 groups of ____.

Correct Answer: ten

Question 4:

____ is one more ten than 20.

Correct Answer: 30

Question 5:

10, ____, 30, 40

Correct Answer: 20

Question 6:

60, 70, 80, ____

Correct Answer: 90

Question 7:

3 groups of ten is ____.

Correct Answer: 30

Question 8:

____, 20, 30, 40

Correct Answer: 10

Question 9:

80, 90, ____

Correct Answer: 100

Question 10:

Ten groups of ten is ____.

Correct Answer: 100

Educational Standards

CCSS.Math.Content.1.NBT.A.1:Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral. CCSS.Math.Content.1.NBT.B.2.C:The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones). CCSS.Math.Content.1.OA.C.5:Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

Teaching Materials

Download ready-to-use materials for this lesson:

Student Worksheet Classroom Slides Assessment Quiz Export to Google Docs
Add to Google Classroom

User Actions

Sign in to save this lesson plan to your favorites.

Sign In

Share This Lesson

Related Lesson Plans