📖

Dividing by Decimals: The Trick

Dividing Decimals

Day 33of 180
Week 7of 36
45Minutes
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🖨️ Download Worksheet (PDF)🧮 Download Math Practice (PDF)
🎯 What You'll Learn

Learning Objectives

1

Understand how to divide by decimals by converting to whole number division

2

Learn to move decimal points to create equivalent division problems

3

Develop problem-solving skills and mathematical reasoning

📖 Scripture Connection

Proverbs 21:5

“The plans of the diligent surely lead to profit, as surely as haste leads to poverty.”

— Proverbs 21:5 (WEB)

Just as careful planning leads to success in math, diligence and precision in problem-solving are key to understanding decimal division

📦 Materials Needed

  • Graph paper
  • Pencil
  • Calculator
  • Decimal place value chart
  • WEB Bible
📚 Step-by-Step

Lesson Plan

1Opening (5 min)

BibleMouse math explorers, today we'll unlock the secret of dividing by decimals! Remember how we've been working with decimal division? Now we'll learn a special trick to make these problems easier.

💭 Review Question: Can you explain how we divided decimals by whole numbers in our last lesson?
2Teaching (15 min)

When dividing by a decimal, we can transform the problem by moving decimal points. This makes the division easier by creating a whole number divisor.

📌 Key Talking Points:
  • Decimals can be tricky to divide
  • We'll use a 'multiplication trick' to simplify division
  • Moving decimal points helps us solve problems more easily
💬 Discussion Questions:
  • Why might we want to change a decimal division problem?
  • How can moving decimal points help us?
3Activity: Decimal Division Transformation Challenge (18 min)
hands-on

Students will practice converting decimal division problems to whole number division

📝 Instructions:
  1. Take a decimal division problem like 4.8 ÷ 0.2
  2. Multiply both top and bottom by 10 to move decimal points
  3. Solve the new whole number problem: 48 ÷ 2
  4. Check your answer using the calculator
🔄 Variations:

Simpler: Use smaller numbers and work with a parent

Challenge: Create multi-step decimal division problems

4Closing (7 min)

Review the key steps of converting decimal division to whole number division

📝 Review Questions:
  • What do we do to divide by a decimal?
  • Why do we multiply both the dividend and divisor?

Coming up: Tomorrow, we'll have a Decimal Division Practice Marathon to build our skills!

👨‍👩‍👧 For Parents

Teaching Notes

📚 Background:

Decimal division can be challenging for 5th graders. Patient, step-by-step guidance is key.

💡 Teaching Tips:
  • Use visual aids like decimal place value charts
  • Demonstrate each step slowly
  • Encourage checking work with a calculator
🤔 Common Struggles:

Students often get confused about moving decimal points

👀 Signs of Understanding:

Consistent understanding of decimal point placement

🚀 Want More?

Extension Activities

  • Create a decimal division word problem game
  • Use BibleMouse Printables Library for additional practice worksheets

Ready for Tomorrow?

Great job completing today's lesson!

Continue to Day 34 →Back to Math