Unlocking Place Value: Ones and Tens!

Mathematics Grades 2nd Grade 3:17 Video
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Lesson Description

Let's learn about place value! This lesson will help you understand how the place of a number (ones or tens) changes its value. We'll explore how to identify the value of digits in two-digit numbers using fun visuals and activities.

Video Resource

Place Value: Ones and Tens | Math for Grade 2 | Kids Academy

Kids Academy

Duration: 3:17
Watch on YouTube

Key Concepts

  • Place Value: The value of a digit depends on its position in a number.
  • Ones Place: The digit furthest to the right represents its own value.
  • Tens Place: The digit in the tens place represents ten times its value.

Learning Objectives

  • Students will be able to identify the ones and tens place in a two-digit number.
  • Students will be able to determine the value of a digit based on its place in a two-digit number.

Educator Instructions

  • Introduction (5 mins)
    Begin by asking students what they know about numbers. Ask them what happens when we put two numbers together. Explain that numbers have different 'places' and that each place has a value.
  • Video Viewing (5 mins)
    Play the Kids Academy video 'Place Value: Ones and Tens'. Ask students to pay attention to how the video explains the ones and tens places.
  • Discussion and Examples (10 mins)
    After the video, discuss what the students learned. Emphasize the difference between the digit and its value. Use examples from the video like 35 and 26. Write numbers on the board and have students identify the value of each digit.
  • Interactive Activity: Building Numbers (15 mins)
    Provide students with manipulatives like base ten blocks, linking cubes, or even colored pencils. Have them build different two-digit numbers and identify the value of each digit. For example, if they build 42, they should say 'The 4 is in the tens place, so it's worth 40. The 2 is in the ones place, so it's worth 2.'
  • Wrap Up and Challenge (5 mins)
    Review the key concepts of place value. Give students a final challenge: 'What is the value of the digits in the number 71?'.

Interactive Exercises

  • Building Numbers with Blocks
    Students use base ten blocks (or similar manipulatives) to represent two-digit numbers. They then explain the value of each digit based on its place value. Example: Represent 63. Explanation: 'The 6 is in the tens place, so it represents 60. The 3 is in the ones place, so it represents 3.'
  • Place Value Chart
    Provide a simple chart with 'Tens' and 'Ones' columns. Give students numbers and have them write the digits in the correct columns. Then, have them write the value of each digit below the chart. Example: Number 57. Chart: Tens (5), Ones (7). Values: 50, 7.

Discussion Questions

  • What is the difference between a digit and its value?
  • How does the place of a digit change its value?
  • Can you think of a time when you use place value in everyday life?

Skills Developed

  • Understanding Place Value
  • Critical Thinking
  • Number Sense
  • Problem-solving

Multiple Choice Questions

Question 1:

In the number 29, which number is in the ones place?

Correct Answer: 9

Question 2:

In the number 53, what is the value of the 5?

Correct Answer: 50

Question 3:

Which number has 7 in the tens place?

Correct Answer: 71

Question 4:

What number is made of 3 tens and 8 ones?

Correct Answer: 38

Question 5:

What is the value of the 4 in the number 41?

Correct Answer: 40

Question 6:

If you have 6 tens, what number do you have?

Correct Answer: 60

Question 7:

Which of these numbers has a 2 in the ones place?

Correct Answer: 32

Question 8:

What number is the same as 9 tens and 0 ones?

Correct Answer: 90

Question 9:

What is the value of the 8 in the number 85?

Correct Answer: 80

Question 10:

Which number has the greatest value in the tens place?

Correct Answer: 40

Fill in the Blank Questions

Question 1:

The number 68 has 6 _________ and 8 ones.

Correct Answer: tens

Question 2:

In the number 32, the 2 is in the _________ place.

Correct Answer: ones

Question 3:

The number 50 is made up of _________ tens and 0 ones.

Correct Answer: 5

Question 4:

The value of the 7 in 74 is _________.

Correct Answer: 70

Question 5:

The number 19 has 1 ten and _________ ones.

Correct Answer: 9

Question 6:

In the number 46, the _________ is in the tens place.

Correct Answer: 4

Question 7:

If you have 2 tens and 5 ones, you have the number _________.

Correct Answer: 25

Question 8:

The number 93 has 9 tens, which is _________.

Correct Answer: 90

Question 9:

The 3 in the number 30 is in the _________ place.

Correct Answer: tens

Question 10:

The number _________ has 8 tens and 2 ones.

Correct Answer: 82

Educational Standards

2.N.1.3:Use place value to describe whole numbers between 10 and 1,000 in terms of hundreds, tens, and ones, including written, standard, and expanded forms. Know that 10 is equivalent to 10 ones and 100 is equivalent to 10 tens. 2.N.1.1:Read, write, discuss, and represent whole numbers up to 1,000. Representations should include, but are not limited to, numerals, words, pictures, tally marks, number lines, and manipulatives.

Teaching Materials

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