Introduction Activity
Duration: 8 minutes (13% of lesson time)
🎯 Hook Activity
The Magic Number Challenge
Display on board: 9,999
Ask students: "What would happen if I added 1 more? What would the number become?"
⏱️ Allow 30 seconds for think time
📊 Pre-Test Review
Quickly go through the pre-test answers, focusing on common misconceptions.
Common Misconception: "The 5 in 3,521 is just 5"
✓ Correction: The digit 5 is in the hundreds place, so its value is 500, not 5.
Watch for: Students confusing the digit (5) with its value (500)
✓ Strategy: Use consistent language – "The digit 5 is in the hundreds place. Its value is 500."
🌍 Real-World Connection
The $9,999.99 Receipt
Show a sample receipt or image with total: $9,999.99
Discussion: "How does each digit's place determine its value in this price?"
- The 9 in the thousands place = $9,000
- The 9 in the hundreds place = $900
- The 9 in the tens place = $90
- The 9 in the ones place = $9
👨🏫 Teacher Tips
- Keep the pace brisk – this section is only 8 minutes
- Use visual aids (number cards, slides) to maintain engagement
- Invite 2-3 students to share their pre-test thinking