## Reflection: Developing a Conceptual Understanding Comparing and Ordering Numbers with a Number Line - Section 5: Closure

Teaching students to use tools are a good way to check for conceptual understanding.  I find that I learn a lot about my students' understanding when I look at their models.  In this particular lesson, some of the students were making the same mistake they made in previous lesson of putting numbers in order.  If there are the same number of digits in each number, then they have no problem.  Put if the numbers begin with the same numbers, but the number of digits are different, then some of them make careless mistakes in putting those numbers in order.  For example, with the numbers 127,118 and 12781 some students will not pay attention to the fact that one number is a 6-digit number and the other is a 5-digit number.  We will continue to work on this skill.

Using Tools
Developing a Conceptual Understanding: Using Tools

# Comparing and Ordering Numbers with a Number Line

Unit 10: Place Value
Lesson 6 of 6

## Big Idea: Putting numbers on a number line is a strategy that can be used to help students compare and order numbers.

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55 minutes

### Rose Monroe

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