### Online College Courses for Credit

#### FREE EDUCATIONAL RESOURCES PROVIDED by SOPHIA

##### Are you a student?
Free Professional Development
+

# Course 1, Lesson 9, The Number Line: Ordering and Comparing

##### Rating:
(0)
Author: Hector Soto
##### Description:

1. Fluently divide multi-digit numbers using the standard algorithm. 2. Interpret statements of inequality as statements about the relative position of two numbers on a number line diagram. For example, interpret -3 > -7 as a statement that -3 is located to the right of -7 on a number line oriented from left to right. 3. Write, interpret, and explain statements of order for rational numbers in real-world contexts. For example, write -3 ?C > -7 ?C to express the fact that -3 ?C is warmer than -7 ?C. 4. Write expressions that record operations with numbers and with letters standing for numbers. 5. Understand solving an equation or inequality as a process of answering a question: which values from a specified set, if any, make the equation or inequality true? Use substitution to determine whether a given number in a specified set makes an equation or inequality true. 6. Use variables to represent numbers and write expressions when solving a real-world or mathematical problem; understand that a variable can represent an unknown number, or, depending on the purpose at hand, any number in a specified set.

(more)

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to many different colleges and universities.*

No credit card required

29 Sophia partners guarantee credit transfer.

311 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 27 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

## Instructions

Please watch the video, take notes, and complete the quiz.

## The Number Line: Ordering and Comparing

Source: Hector Soto