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Counting Back from Teens

Subtracting with Teen Numbers

Day 127of 180
Week 26of 36
25Minutes
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🖨️ Download Worksheet (PDF)🧮 Download Math Practice (PDF)

Learning Objectives

1

Count backward from teen numbers

2

Subtract small numbers from teen numbers

3

Develop perseverance in mathematical thinking

Proverbs 4:7

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

Proverbs 4:7 (WEB)

Just as we learn to count step by step, we learn wisdom gradually by practicing and understanding

📦 Materials Needed

  • Ten frames
  • Counters
  • Number line
  • Whiteboard or paper
  • Dry erase marker

Lesson Plan

1Opening (3 min)

BibleMouse Math Adventure begins! Remind students about yesterday's subtraction from teen numbers

💭 Review Question: Who remembers how we took away small numbers from teen numbers yesterday?
2Teaching (8 min)

Demonstrate counting backward from teen numbers

📌 Key Talking Points:
  • When we subtract, we move backward on our number line
  • Start at the bigger number and count back
  • Each step represents taking away one
💬 Discussion Questions:
  • What happens when we count back?
  • Can you show me how to count back from 15?
3Activity: Backward Hop Challenge (10 min)
hands-on

Students use number line to practice subtraction by hopping backward

📝 Instructions:
  1. Draw a number line from 10 to 20
  2. Start at a teen number
  3. Hop backward to subtract
  4. Say each number as you hop
🔄 Variations:

Simpler: Use fewer hops, stay between 10-15

Challenge: Try subtraction with larger numbers

4Closing (3 min)

Recap our backward counting adventure

📝 Review Questions:
  • What did we learn about subtraction today?
  • Show me how you count backward

Coming up: Tomorrow we'll explore number line subtraction more deeply

Teaching Notes

📚 Background:

Backward counting develops number sense and prepares for more complex subtraction

💡 Teaching Tips:
  • Be patient and celebrate small victories
  • Use physical movement to make math fun
  • Praise effort over perfection
🤔 Common Struggles:

Children might get confused tracking backward on number line

👀 Signs of Understanding:

Consistent understanding of moving backward to subtract

Extension Activities

  • Use BibleMouse Printables Library for subtraction worksheets
  • Practice counting backward during daily activities

Ready for Tomorrow?

Great job completing today's lesson!

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