📖

Counting On by Tens and Ones

Addition Within 100: Mental Math Strategies

Day 30of 180
Week 6of 36
30Minutes
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🖨️ Download Worksheet (PDF)🧮 Download Math Practice (PDF)
🎯 What You'll Learn

Learning Objectives

1

Understand how to count on by tens and ones using a hundred chart

2

Add two-digit numbers using mental math strategies

3

Develop confidence in mathematical problem-solving

📖 Scripture Connection

Proverbs 2:2

“So that you incline your ear to wisdom, and apply your heart to understanding;”

— Proverbs 2:2 (WEB)

Just as we carefully apply our minds to understanding math strategies, we can apply our hearts to understanding God's wisdom

📦 Materials Needed

  • Hundred chart
  • Pencil
  • Worksheet
  • Base-ten blocks
  • Colored marker
📚 Step-by-Step

Lesson Plan

1Opening (3 min)

In today's BibleMouse lesson, we'll explore how counting on by tens and ones makes adding easier!

💭 Review Question: What strategy did we use yesterday to make adding easier?
2Teaching (10 min)

Today we'll learn to count on by tens first, then ones, using our hundred chart as a guide.

📌 Key Talking Points:
  • Start with the larger number
  • Jump by tens first
  • Then count on the remaining ones
💬 Discussion Questions:
  • How might counting by tens help us add faster?
  • What makes some numbers 'friendly' to add?
3Activity: Hundred Chart Hopping (12 min)
hands-on

Students will practice counting on by using a hundred chart to visualize number movements

📝 Instructions:
  1. Choose two numbers to add
  2. Start with the larger number on the hundred chart
  3. Move by tens first
  4. Then hop the remaining ones
  5. Write down the final sum
🔄 Variations:

Simpler: Use smaller numbers (20 + 15)

Challenge: Add three two-digit numbers using the same strategy

4Closing (3 min)

Review how counting on by tens and ones makes math easier

📝 Review Questions:
  • What did we learn about adding numbers?
  • How can the hundred chart help us?

Coming up: Tomorrow we'll learn about what happens when our ones column gets too full!

👨‍👩‍👧 For Parents

Teaching Notes

📚 Background:

Counting on is a critical mental math strategy that builds number sense

💡 Teaching Tips:
  • Be patient and encouraging
  • Use the BibleMouse Resource Guide for additional support
  • Praise effort over perfection
🤔 Common Struggles:

Children might get confused tracking jumps on the hundred chart

👀 Signs of Understanding:

Smooth movement on the hundred chart, understanding of tens and ones

🚀 Want More?

Extension Activities

  • Create a 'Number Journey' game using the hundred chart
  • Practice adding with BibleMouse Printables Library worksheets

Ready for Tomorrow?

Great job completing today's lesson!

Continue to Day 31 →Back to Math