Unlocking Numbers: Exploring Place Value with Tens and Ones!

Math Grades 1st Grade 5:59 Video
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Lesson Description

Let's learn about place value! We'll discover how to group numbers into tens and ones, making big numbers easier to understand. Get ready to count and explore!

Video Resource

Introduction to place value | Place value (tens and hundreds) | Early Math | Khan Academy

Khan Academy

Duration: 5:59
Watch on YouTube

Key Concepts

  • Ones place
  • Tens place
  • Grouping by tens

Learning Objectives

  • Students will be able to identify the ones and tens place in a two-digit number.
  • Students will be able to group objects into sets of ten.
  • Students will be able to represent a number using tens and ones.

Educator Instructions

  • Introduction (5 mins)
    Begin by asking students how they count. Discuss how counting one by one can be slow with larger numbers. Introduce the idea that there might be a faster way to count things and write numbers. Ask students if they have ever heard of the 'tens' or 'ones' place.
  • Video Viewing (7 mins)
    Play the Khan Academy video 'Introduction to place value'. Encourage students to pay attention to how the video explains grouping numbers into tens and ones. Pause the video at the point where the number 37 is introduced.
  • Discussion (5 mins)
    After watching the video segment, facilitate a class discussion using the questions provided. Guide students to understand the concept of grouping by tens to simplify counting.
  • Interactive Exercise: Counting with Cubes (10 mins)
    Provide each student (or pair of students) with a set of connecting cubes. Ask them to represent different numbers (e.g., 23, 16, 31) using the cubes, grouping them into tens and ones. Have them explain how many tens and ones are in each number.
  • Wrap-up (3 mins)
    Review the key concepts of ones and tens places. Emphasize how understanding place value makes counting and understanding larger numbers easier. Announce the upcoming quiz.

Interactive Exercises

  • Tens and Ones Chart
    Provide students with a chart that has two columns labeled 'Tens' and 'Ones'. Give them different numbers and have them write the number of tens and ones in the correct columns. For example, for the number 42, they would write '4' in the Tens column and '2' in the Ones column.

Discussion Questions

  • Why is it helpful to group things into tens?
  • In the number 37, how many tens are there? How many ones?
  • Can you think of other times when grouping things into tens might be useful?

Skills Developed

  • Counting
  • Place Value Understanding
  • Problem-Solving

Multiple Choice Questions

Question 1:

Which number is in the TENS place in the number 24?

Correct Answer: 2

Question 2:

Which number is in the ONES place in the number 15?

Correct Answer: 5

Question 3:

How many TENS are in the number 30?

Correct Answer: 3

Question 4:

How many ONES are in the number 11?

Correct Answer: 1

Question 5:

If you have 2 TENS and 3 ONES, what number do you have?

Correct Answer: 23

Question 6:

The number 10 is the same as:

Correct Answer: 1 ten

Question 7:

Which of these shows 1 ten and 7 ones?

Correct Answer: 17

Question 8:

What is bigger, 2 tens or 5 ones?

Correct Answer: 2 tens

Question 9:

Which number has 4 in the ones place?

Correct Answer: 14

Question 10:

How many groups of ten can you make from 20?

Correct Answer: 2

Fill in the Blank Questions

Question 1:

The number 45 has 4 _____.

Correct Answer: tens

Question 2:

The number 12 has 2 _____.

Correct Answer: ones

Question 3:

3 tens and 6 ones make the number _____.

Correct Answer: 36

Question 4:

The first place on the right is called the _____ place.

Correct Answer: ones

Question 5:

Ten ones make one _____.

Correct Answer: ten

Question 6:

In the number 27, the 7 is in the _____ place.

Correct Answer: ones

Question 7:

The number 19 has 1 _____.

Correct Answer: ten

Question 8:

If you have 2 tens, you have _____.

Correct Answer: 20

Question 9:

The tens place is to the left of the _____ place.

Correct Answer: ones

Question 10:

5 tens and 0 ones makes the number _____.

Correct Answer: 50

Educational Standards

CCSS.Math.Content.1.NBT.B.2:Understand that the two digits of a two-digit number represent amounts of tens and ones. CCSS.Math.Content.1.NBT.B.2.A:10 can be thought of as a bundle of ten ones — called a 'ten.' CCSS.Math.Content.1.NBT.B.2.B:The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.

Teaching Materials

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