📖

What's an Expression?

Introduction to Expressions and Order of Operations

Day 36of 180
Week 8of 36
45Minutes
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🖨️ Download Worksheet (PDF)🧮 Download Math Practice (PDF)

Learning Objectives

1

Understand what a mathematical expression is

2

Distinguish between expressions and equations

3

Create and evaluate simple numerical expressions

Proverbs 16:16

How much better it is to get wisdom than gold! Yes, to get understanding is to be chosen above silver.

Proverbs 16:16 (WEB)

Just as mathematical expressions have a specific structure and meaning, wisdom requires understanding the underlying principles of how things work together

📦 Materials Needed

  • Expression cards
  • Whiteboard
  • Markers
  • Calculators
  • Notebook
  • Pencils

Lesson Plan

1Opening (5 min)

Welcome to today's BibleMouse math adventure! We'll explore how mathematical expressions are like special language for numbers.

💭 Review Question: Can you remember how we worked with decimal division last week?
2Teaching (15 min)

Introducing mathematical expressions as combinations of numbers and operations

📌 Key Talking Points:
  • An expression is a mathematical phrase that combines numbers and operations
  • Expressions can include addition, subtraction, multiplication, and division
  • Expressions are different from equations because they don't have an equals sign
💬 Discussion Questions:
  • What do you think makes an expression different from an equation?
  • Can you give an example of a number phrase?
3Activity: Expression Exploration (18 min)
hands-on

Create and evaluate mathematical expressions using expression cards

📝 Instructions:
  1. Shuffle the expression cards
  2. Draw 3 number cards and 2 operation cards
  3. Create an expression using the cards
  4. Calculate the value of your expression
  5. Share your expression with a family member
🔄 Variations:

Simpler: Use only addition and subtraction

Challenge: Include multiplication and division with more complex numbers

4Closing (7 min)

Review key concepts of mathematical expressions

📝 Review Questions:
  • What is a mathematical expression?
  • How is an expression different from an equation?

Coming up: Tomorrow we'll explore how parentheses can change the way we solve expressions!

Teaching Notes

📚 Background:

Fifth graders are developing abstract thinking skills and can handle more complex mathematical concepts

💡 Teaching Tips:
  • Use visual demonstrations
  • Encourage hands-on exploration
  • Connect math to real-world problem-solving
🤔 Common Struggles:

Distinguishing between expressions and equations, understanding order of operations

👀 Signs of Understanding:

Ability to create and evaluate simple expressions, understanding basic mathematical language

Extension Activities

  • Create a math journal documenting different types of expressions
  • Use BibleMouse Printables Library for additional expression worksheets

Ready for Tomorrow?

Great job completing today's lesson!

Continue to Day 37Back to Math