Showing Two and Three Digit Numbers on a Number Line

This lesson teaches how to represent numbers on a number line by considering hundreds, tens, and ones. It begins with modeling numbers using place value tools and addresses common misunderstandings, such as incorrect scaling. The lesson provides examples of placing two-digit and three-digit numbers on a number line, emphasizing the importance of understanding the scale and units. By the end, students should be able to accurately model numbers on a number line using place value concepts.

How can you represent the number 253 using place value tools?

• Two hundreds, five tens, and three ones

• Two hundreds, three tens, and five ones

• Three hundreds, two tens, and five ones

• Five hundreds, two tens, and three ones

What is a common mistake when using number lines?

• Counting backwards

• Using only even numbers

• Ignoring the starting point

• Always counting by units of 1

If a number line counts by tens, how would you correctly place the number 52?

• Jump five tens and two tens

• Jump five tens and two ones

• Jump five tens and one ten

• Jump five tens and three ones

How would you model the number 89 on a number line that counts by ones?

• Jump nine tens and nine ones

• Jump nine tens and eight ones

• Jump eight tens and nine ones

• Jump eight tens and eight ones

What is one way to model the number 253 on a number line that counts by tens?

• Start at 250, jump three tens, and two ones

• Start at 200, jump three tens, and five ones

• Start at 250, jump five tens, and three ones

• Start at 200, jump five tens, and three ones