Unlocking Fact Families: A Spooky Math Adventure!

Math Grades 1st Grade 7:52 Video
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Lesson Description

Learn about fact families with a fun haunted house theme! Discover how addition and subtraction are related and solve math problems together.

Video Resource

Fact Families - Addition and Subtraction | Math for 1st Grade | Kids Academy

Kids Academy

Duration: 7:52
Watch on YouTube

Key Concepts

  • Fact families consist of related addition and subtraction equations.
  • Fact families use the same three numbers.
  • Addition and subtraction are inverse operations.

Learning Objectives

  • Students will be able to identify the three numbers that belong to a fact family.
  • Students will be able to generate addition and subtraction equations within a fact family.
  • Students will be able to determine if a given equation belongs to a specific fact family.

Educator Instructions

  • Introduction (5 mins)
    Begin by explaining what a 'fact family' is in simple terms. Relate it to real families to make it more relatable. Show a simple example like 2, 3, and 5. Explain how these numbers can make two addition and two subtraction sentences.
  • Video Viewing (7 mins)
    Watch the 'Fact Families - Addition and Subtraction' video from Kids Academy. Encourage students to pay attention to how the teacher in the video explains and identifies fact families using the haunted house worksheet.
  • Guided Practice (10 mins)
    Work through a couple of fact family examples together as a class. Use the fact family triangle (as mentioned in the video) to visually represent the numbers and their relationships. Have students help create the addition and subtraction equations.
  • Independent Practice (10 mins)
    Provide students with a worksheet containing fact family problems similar to the one in the video. Have them identify the correct equations for each fact family. Circulate the classroom to provide assistance as needed.
  • Wrap-up (3 mins)
    Review the concept of fact families and answer any remaining questions. Emphasize the connection between addition and subtraction.

Interactive Exercises

  • Fact Family Flashcards
    Create flashcards with sets of three numbers. Have students write down all the addition and subtraction equations that belong to that fact family.
  • Haunted House Worksheet
    Use a worksheet with haunted house illustrations, each containing a set of numbers. Students circle the ghost carrying the correct addition and subtraction problems for each haunted house fact family.

Discussion Questions

  • What is a fact family?
  • How are addition and subtraction related in a fact family?
  • Can you give an example of a fact family?

Skills Developed

  • Addition
  • Subtraction
  • Number Sense
  • Problem-Solving

Multiple Choice Questions

Question 1:

Which numbers are in the fact family for 5 + 2 = 7?

Correct Answer: 5, 2, 7

Question 2:

A fact family uses how many numbers?

Correct Answer: Three

Question 3:

Which sign means we are taking away?

Correct Answer: -

Question 4:

What is 8 - 3?

Correct Answer: 5

Question 5:

If 4 + 6 = 10, what is 10 - 4?

Correct Answer: 6

Question 6:

Which equation does NOT belong in the fact family 9, 1, 8?

Correct Answer: 9 + 8 = 1

Question 7:

What is 3 + 7?

Correct Answer: 10

Question 8:

Which equation is part of the fact family 6, 2, 4?

Correct Answer: 4 + 2 = 6

Question 9:

What two math signs do fact families use?

Correct Answer: + and -

Question 10:

What is the missing number in this fact family? 5, 8, ___

Correct Answer: 13

Fill in the Blank Questions

Question 1:

A fact family has _______ numbers.

Correct Answer: three

Question 2:

5 + 4 = 9. So, 9 - 5 = _______.

Correct Answer: 4

Question 3:

Addition and subtraction are _______ to each other.

Correct Answer: related

Question 4:

The + sign means we are _______.

Correct Answer: adding

Question 5:

The - sign means we are _______.

Correct Answer: subtracting

Question 6:

A fact family for 2, 6, and 8 has 2 + 6 = _____

Correct Answer: 8

Question 7:

If 7 + 3 = 10, then 10 - _____ = 7

Correct Answer: 3

Question 8:

9, 1, and 10 are part of a _______ family.

Correct Answer: fact

Question 9:

In 4 + 5 = 9, 4 and 5 are _______ together.

Correct Answer: added

Question 10:

The number after the equal sign (=) is called the _______.

Correct Answer: answer

Educational Standards

CCSS.Math.Content.1.OA.B.4:Understand subtraction as an unknown-addend problem. For example, subtract 10 - 8 by finding the number that makes 10 when added to 8. CCSS.Math.Content.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). CCSS.Math.Content.1.OA.D.7:Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

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