Current Role: Student
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📊 Place Value in Numbers
Primary 3 Mathematics
Understanding Hundreds, Tens, and Ones
Duration: 60 minutes
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🎯 Today's Mission
Become Place Value Detectives! 🕵️
- ✓ Identify place values in 3-digit numbers
- ✓ Build numbers with blocks and charts
- ✓ Compare and order numbers
- ✓ Solve real-world problems
- ✓ Explain our thinking using math words
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🤔 Hook: What Does This Mean?
$245
What does the 2 really mean in this price?
Think about it... then share with your partner!
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📦 The Three Places
Hundreds | Tens | Ones
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🔢 Example: Building 327
327
◼️ ◼️ ◼️ = 3 hundreds = 300
📏 📏 = 2 tens = 20
• • • • • • • = 7 ones = 7
300 + 20 + 7 = 327
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🎨 Activity 1: Concrete Stage
Build with Base-10 Blocks
Your Turn! Work in pairs to build:
Say: "I built ___ as ___ hundreds, ___ tens, and ___ ones."
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📊 Comparing Numbers
Which is bigger: 328 or 342?
Step 1: Compare hundreds → Both have 3 ✓
Step 2: Compare tens → 2 vs 4
Step 3: Since 2 < 4...
328 < 342
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🎪 Real-World Challenge
School Fair Bundle-Up!
Our class collected 287 pencils for prize packs.
Bundle them into: hundreds, tens, and ones.
How many of each bundle? 🤔
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🎬 Exit Ticket
On your sticky note, answer:
Question 1: Write the number shown by the base-10 blocks on the board
Question 2: Which is greater: 619 or 691? Explain why.
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🌟 Great Work, Place Value Detectives!
Today you learned to:
- ✓ Identify hundreds, tens, and ones
- ✓ Build and represent numbers
- ✓ Compare numbers using place value
- ✓ Solve real-world problems
Tomorrow: Place value problem solving with rounding! 🚀
📋 Presentation Notes
- Advance slides at your own pace — each corresponds to a lesson segment
- Slides 1-3: Introduction (10 min)
- Slides 4-6: Activities 1-2 (20 min)
- Slide 7: Activity 3 (10 min)
- Slide 8: Activity 4 (10 min)
- Slides 9-10: Closure (10 min)