📖

Mixed Practice: Addition and Subtraction

Review: Operations Within 20

Day 149of 180
Week 30of 36
30Minutes
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🎯 What You'll Learn

Learning Objectives

1

Determine whether to use addition or subtraction in problem-solving

2

Complete mixed addition and subtraction problems within 20

3

Develop confidence in mathematical reasoning

📖 Scripture Connection

Proverbs 2:6

“For Yahweh gives wisdom. Out of his mouth comes knowledge and understanding.”

— Proverbs 2:6 (WEB)

Just as God provides wisdom for understanding, we can learn to understand math by breaking down problems step by step

📦 Materials Needed

  • BibleMouse Mixed Operations Worksheet
  • Pencil
  • Manipulatives (counting bears or buttons)
  • Whiteboard and marker
📚 Step-by-Step

Lesson Plan

1Opening (3 min)

Gather at the math table and review previous day's subtraction strategies

💭 Review Question: What are two ways we can solve subtraction problems?
2Teaching (10 min)

Introduce mixed operation problem-solving strategy

📌 Key Talking Points:
  • Look carefully at each problem
  • Decide if you need to add or subtract
  • Use manipulatives if you get stuck
💬 Discussion Questions:
  • How can we tell if a problem needs addition or subtraction?
  • What tools help us solve tricky math problems?
3Activity: BibleMouse Mixed Operations Challenge (12 min)
worksheet

Complete worksheet solving mixed addition and subtraction problems

📝 Instructions:
  1. Read each problem carefully
  2. Decide whether to add or subtract
  3. Show your work using manipulatives if needed
  4. Check your answers
🔄 Variations:

Simpler: Use manipulatives for every problem

Challenge: Solve problems without counting on fingers

4Closing (3 min)

Review worksheet together and celebrate math victories

📝 Review Questions:
  • What was the most challenging problem?
  • How did you decide between addition and subtraction?

Coming up: Tomorrow we'll explore math in real-world situations

👨‍👩‍👧 For Parents

Teaching Notes

📚 Background:

Mixed operations require careful reading and strategic thinking

💡 Teaching Tips:
  • Encourage thinking out loud
  • Praise effort over perfect answers
  • Use positive, calm language
🤔 Common Struggles:

Determining whether to add or subtract

👀 Signs of Understanding:

Confidence in problem-solving approach

🚀 Want More?

Extension Activities

  • Create word problems together
  • Play 'Operation Detective' guessing game

Ready for Tomorrow?

Great job completing today's lesson!

Continue to Day 150 →Back to Math