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Counting Up: The Subtraction Bridge

Subtraction Within 20: Think Addition

Day 43of 180
Week 9of 36
30Minutes
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🖨️ Download Worksheet (PDF)🧮 Download Math Practice (PDF)

Learning Objectives

1

Understand subtraction as 'counting up' from the smaller number

2

Solve subtraction problems by counting forward on a number line

3

Develop patience and persistence in problem-solving

Proverbs 4:7

Wisdom is supreme. Get wisdom. Yes, though it costs all your possessions, get understanding.

Proverbs 4:7 (WEB)

Just as we build mathematical understanding step by step, we build wisdom gradually through learning and persistence

📦 Materials Needed

  • Number line to 20
  • Pencil
  • Worksheet
  • Linking cubes (optional)

Lesson Plan

1Opening (5 min)

Today's BibleMouse lesson will help us learn how counting up can make subtraction easier! We'll be mathematical explorers, discovering new ways to solve problems.

💭 Review Question: Can you remember how we used addition to help us subtract yesterday?
2Teaching (10 min)

Let's practice counting up to solve subtraction problems. When the numbers are close together, we can count forward from the smaller number to find the difference.

📌 Key Talking Points:
  • Start with the smaller number
  • Count up to the bigger number
  • The spaces you count are your answer
💬 Discussion Questions:
  • What happens when we count up?
  • How is counting up like a bridge between numbers?
3Activity: Subtraction Stepping Stones (12 min)
worksheet

Students will complete a BibleMouse worksheet practicing subtraction by counting up

📝 Instructions:
  1. Look at each subtraction problem
  2. Use your number line to count up from the smaller number
  3. Write down how many steps you took
🔄 Variations:

Simpler: Use linking cubes to physically count up

Challenge: Solve problems without the number line

4Closing (3 min)

Let's celebrate our mathematical discoveries today!

📝 Review Questions:
  • What did we learn about subtraction?
  • How can counting up help us solve math problems?

Coming up: Tomorrow, we'll learn how to break apart numbers to make subtraction easier!

Teaching Notes

📚 Background:

Counting up is a natural way for children to understand subtraction, bridging their understanding between addition and subtraction

💡 Teaching Tips:
  • Be patient and encouraging
  • Use physical objects to demonstrate counting up
  • Praise effort over perfection
🤔 Common Struggles:

Children may initially find it challenging to count forward for subtraction

👀 Signs of Understanding:

Confidence in using the number line, understanding of 'counting up' concept

Extension Activities

  • Create a subtraction game using a number line
  • Practice counting up with different number pairs

Ready for Tomorrow?

Great job completing today's lesson!

Continue to Day 44Back to Math