Fraction Action: Multiplying Fractions with Treasure!

Mathematics Grades 4th Grade 2:05 Video
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Lesson Description

Learn how to multiply fractions using a fun story about sharing treasure! This lesson uses a catchy song and real-world examples to make multiplying fractions easy and engaging for 4th graders.

Video Resource

Multiplying Fractions Song | Math Rap Video

Math Songs by NUMBEROCK

Duration: 2:05
Watch on YouTube

Key Concepts

  • Multiplying Fractions
  • Numerator
  • Denominator

Learning Objectives

  • Students will be able to multiply two fractions by multiplying the numerators and the denominators.
  • Students will be able to apply fraction multiplication to solve real-world problems.
  • Students will be able to define numerator and denominator.

Educator Instructions

  • Introduction (5 mins)
    Begin by asking students if they have ever had to share something with others. Discuss the importance of sharing and fairness. Introduce the concept of fractions as representing parts of a whole.
  • Video Viewing (5 mins)
    Play the "Multiplying Fractions Song | Math Rap Video" by NUMBEROCK. Encourage students to listen carefully to the lyrics and pay attention to the steps for multiplying fractions.
  • Discussion and Explanation (10 mins)
    After the video, review the steps for multiplying fractions. Emphasize that you multiply the numerators to get the new numerator and multiply the denominators to get the new denominator. Use the example from the video (1/2 * 1/3) to illustrate the process. Relate it back to the treasure story - splitting the remaining treasure three ways is the same as taking one third of it.
  • Guided Practice (10 mins)
    Work through a few example problems together as a class. For example: 1. What is 2/5 multiplied by 1/4? 2. Sarah has 1/3 of a pizza left. She eats 1/2 of that leftover pizza. How much of the whole pizza did she eat? Have students explain each step of the process.
  • Independent Practice (10 mins)
    Provide students with a worksheet containing various fraction multiplication problems. Have them work individually to solve the problems. Encourage them to use drawings or models if needed.
  • Wrap-up (5 mins)
    Review the key concepts of the lesson. Ask students to share what they learned about multiplying fractions. Reiterate the steps for multiplying fractions: Multiply the numerators, then multiply the denominators.

Interactive Exercises

  • Fraction Treasure Hunt
    Create a treasure hunt around the classroom where each clue requires students to solve a fraction multiplication problem to find the next clue. The final clue leads to a 'treasure' (e.g., a small prize or treat).

Discussion Questions

  • What are the steps to multiply two fractions?
  • Can you think of a real-life situation where you might need to multiply fractions?
  • What is a numerator and what is a denominator?

Skills Developed

  • Multiplication of Fractions
  • Problem-Solving
  • Critical Thinking

Multiple Choice Questions

Question 1:

What do you multiply first when multiplying two fractions?

Correct Answer: The numerators

Question 2:

What is 1/2 multiplied by 1/4?

Correct Answer: 1/8

Question 3:

What part of the fraction is the numerator?

Correct Answer: The top number

Question 4:

What part of the fraction is the denominator?

Correct Answer: The bottom number

Question 5:

If you have 1/3 of a cake and you eat 1/2 of it, how much of the whole cake did you eat?

Correct Answer: 1/6

Question 6:

What is 2/3 multiplied by 1/5?

Correct Answer: 2/15

Question 7:

What is the numerator in the fraction 3/4?

Correct Answer: 3

Question 8:

What is the denominator in the fraction 2/5?

Correct Answer: 5

Question 9:

What is 1/1 multiplied by 1/1?

Correct Answer: 1/1

Question 10:

What is 1/3 multiplied by 3/4?

Correct Answer: 3/12

Fill in the Blank Questions

Question 1:

When multiplying fractions, you multiply the ______ first.

Correct Answer: numerators

Question 2:

When multiplying fractions, you multiply the denominators to get the new ______.

Correct Answer: denominator

Question 3:

In the fraction 1/4, the 1 is called the ______.

Correct Answer: numerator

Question 4:

In the fraction 2/3, the 3 is called the ______.

Correct Answer: denominator

Question 5:

1/2 multiplied by 1/2 is equal to ______.

Correct Answer: 1/4

Question 6:

The top number of a fraction is called the ______.

Correct Answer: numerator

Question 7:

The bottom number of a fraction is called the ______.

Correct Answer: denominator

Question 8:

2/5 multiplied by 1/3 is equal to ______.

Correct Answer: 2/15

Question 9:

If you have 1/4 of a pizza and eat 1/2 of that, you ate ______ of the whole pizza.

Correct Answer: 1/8

Question 10:

When multiplying fractions, you multiply straight ______.

Correct Answer: across

Educational Standards

4.N.3.5:[Objective] Use models to add and subtract fractions with like denominators. 4.N.2.4:[Objective] Apply and analyze models to solve multi-step problems requiring the use of addition, subtraction, and multiplication of multi-digit whole numbers. Use various strategies, including the relationship between operations, the use of appropriate technology, and the context of the problem to assess the reasonableness of results. 4.N.3.1:[Objective] Represent and rename equivalent fractions using fraction models (e.g., parts of a set, area models, fraction strips, number lines).

Teaching Materials

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