Place Value: 4-Digit Expanded & Standard Form (403)

Teaching Notes

Reinforce understanding that digit position determines its value. Emphasize the relationship between standard and expanded forms.

Vocabulary

Expanded Form: Showing a number as a sum of place values.

Standard Form: Writing a number using digits.

Place Value: The value of a digit based on its position.

Common Mistakes

• Incorrectly placing zeros (e.g., 3045 written as 345)
• Confusing place values (e.g., hundreds instead of thousands)
• Missing components in expanded form (e.g., omitting zero tens)

Differentiation

Discussion Questions

• How does expanded form help us understand a number's value?
• Why is the position of each digit important in a number?
• When might you use expanded form in real life?
• How are 4-digit numbers related to 3-digit numbers?

Extension Activities

• Write numbers in word form.
• Compare numbers using place value.
• Create number riddles.

Parent Tip

Use play money to show how digits represent different amounts.

Skill Cluster

Number Sense and Place Value

Estimated Time

15 minutes

Skills Practiced

Prerequisites

• Place Value to 3 Digits
• Understanding Hundreds, Tens, Ones

Next Steps

• Comparing and Ordering Multi-Digit Numbers
• Rounding to the Nearest Thousand
• Place Value: Build 5-Digit Numbers
• Comparing Multi-Digit Numbers
• Rounding Numbers to the Nearest Thousand