📖

Regrouping with Base-Ten Blocks

Adding Within 100: Extended Strategies

Day 124of 180
Week 25of 36
30Minutes
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🖨️ Download Worksheet (PDF)🧮 Download Math Practice (PDF)
🎯 What You'll Learn

Learning Objectives

1

Understand how to regroup ones into tens using base-ten blocks

2

Model addition problems that require trading 10 ones for 1 ten

3

Develop patience and persistence in problem-solving

📖 Scripture Connection

Proverbs 13:11

“Wealth gained dishonestly dwindles away, but he who gathers by hand makes it grow.”

— Proverbs 13:11 (WEB)

Just like carefully grouping and regrouping numbers, we build understanding step by step, just as wisdom is built gradually

📦 Materials Needed

  • Base-ten blocks
  • Place value mat
  • Whiteboard and marker
  • BibleMouse Math Worksheet (from Resource Guide)
📚 Step-by-Step

Lesson Plan

1Opening (3 min)

Welcome to today's BibleMouse math adventure! Let's review what we learned yesterday about jumping on the hundred chart.

💭 Review Question: Can you show me how you would add 28 + 35 using the hundred chart?
2Teaching (10 min)

Today we're learning how to trade 10 ones for 1 ten using base-ten blocks. This is like organizing a group of friends into teams!

📌 Key Talking Points:
  • 10 ones can be traded for 1 ten
  • We use base-ten blocks to show this clearly
  • Regrouping helps us solve bigger addition problems
💬 Discussion Questions:
  • What happens when we have more than 9 ones?
  • How can we make our counting easier?
3Activity: Base-Ten Block Trading Game (12 min)
hands-on

Students will practice regrouping by solving addition problems with base-ten blocks

📝 Instructions:
  1. Place base-ten blocks on your place value mat
  2. Add the numbers by combining blocks
  3. If you have 10 or more ones, trade them for a ten block
  4. Record your answer on the BibleMouse worksheet
🔄 Variations:

Simpler: Use smaller numbers (like 14 + 6)

Challenge: Try three-digit addition problems

4Closing (3 min)

Let's review what we learned about trading ones for tens!

📝 Review Questions:
  • What do we do when we have 10 ones?
  • How do base-ten blocks help us understand addition?

Coming up: Tomorrow we'll learn how to choose the best addition strategy for different problems!

👨‍👩‍👧 For Parents

Teaching Notes

📚 Background:

Regrouping is a critical math skill that builds understanding of place value

💡 Teaching Tips:
  • Be patient and use lots of positive encouragement
  • Let your child explore and make mistakes
  • Use physical manipulatives to make math concrete
🤔 Common Struggles:

Children often get confused about trading ones for tens

👀 Signs of Understanding:

Child can independently trade 10 ones for 1 ten block

🚀 Want More?

Extension Activities

  • Create a base-ten block addition story problem
  • Play 'Trading Post' game with base-ten blocks
  • Use BibleMouse Printables Library for additional practice worksheets

Ready for Tomorrow?

Great job completing today's lesson!

Continue to Day 125 →Back to Math