Adding Zero: The Magic Number!

Math Grades 1st Grade 6:09 Video
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Lesson Description

Learn how adding zero to any number doesn't change its value. It's like magic!

Video Resource

Learn Grade 1 - Maths - Adding Zero to a Number

KidsClassroom - Nursery Rhymes & Kids Songs

Duration: 6:09
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Key Concepts

  • Adding zero to a number.
  • The identity property of addition (zero doesn't change the value).

Learning Objectives

  • Students will be able to add zero to any number and state the sum.
  • Students will understand that adding zero does not change the value of the number.

Educator Instructions

  • Introduction (5 mins)
    Begin by asking students what they know about the number zero. Explain that zero means 'nothing' or 'none'. Ask them if they think adding nothing to something will change it.
  • Video Viewing (2 mins)
    Play the 'Learn Grade 1 - Maths - Adding Zero to a Number' video.
  • Discussion and Examples (8 mins)
    After the video, reinforce the concept by writing addition problems on the board where zero is added to different numbers (e.g., 5 + 0, 0 + 3, 10 + 0). Have students solve the problems and explain why the answer is always the same as the original number.
  • Practice Activity (10 mins)
    Distribute worksheets with addition problems involving zero. Have students work independently or in pairs to solve the problems.

Interactive Exercises

  • Number Line Hop
    Draw a number line on the board or floor. Have a student start on a number and then 'hop' zero spaces. Ask them where they landed and discuss why they didn't move.
  • Object Addition
    Use objects like blocks or crayons. Show a group of objects (e.g., 3 crayons) and then add zero more. Ask students how many crayons there are now.

Discussion Questions

  • What does zero mean?
  • What happens when we add zero to a number?

Skills Developed

  • Addition
  • Number recognition
  • Problem-solving

Multiple Choice Questions

Question 1:

What is 5 + 0?

Correct Answer: 5

Question 2:

What happens when you add zero to a number?

Correct Answer: It stays the same

Question 3:

What is 0 + 9?

Correct Answer: 9

Question 4:

If you have 2 cookies and add 0 cookies, how many cookies do you have?

Correct Answer: 2

Question 5:

Which of these is the same as 7?

Correct Answer: 7 + 0

Question 6:

What is 12 + 0?

Correct Answer: 12

Question 7:

What is 0 + 4?

Correct Answer: 4

Question 8:

Which number means nothing?

Correct Answer: 0

Question 9:

What is 1 + 0?

Correct Answer: 1

Question 10:

What is 0 + 15?

Correct Answer: 15

Fill in the Blank Questions

Question 1:

5 + ___ = 5

Correct Answer: 0

Question 2:

When you add ___ to a number, it stays the same.

Correct Answer: 0

Question 3:

___ + 8 = 8

Correct Answer: 0

Question 4:

If you have 10 toys and add ___ more, you still have 10 toys.

Correct Answer: 0

Question 5:

___ + 3 = 3

Correct Answer: 0

Question 6:

11 + ___ = 11

Correct Answer: 0

Question 7:

___ + 1 = 1

Correct Answer: 0

Question 8:

When you add zero, you add ________.

Correct Answer: nothing

Question 9:

2 + ___ = 2

Correct Answer: 0

Question 10:

___ + 19 = 19

Correct Answer: 0

Educational Standards

1.OA.B.3:Apply properties of operations as strategies to add and subtract. (Students need not use formal terms for these properties.) Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.) 1.OA.C.6:Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).

Teaching Materials

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