Curated OER
How Do You Add a Negative Number to a Positive Number?
Combine a negative number with a positive number. How? Follow along and see the instructor explain what to do.
Khan Academy
Khan Academy: Algebra I Worked Examples: Absolute Value and Number Lines
The video resource shows worked examples of algebra concepts. Students watch detailed problems on how to find the absolute value of a number using number lines.
Khan Academy
Khan Academy: Absolute Value: Absolute Value and Number Lines
Plot the values on a number line and find the absolute value.
Other
Math Tutor Dvd: Solving & Graphing Absolute Value Inequalities in Algebra, Part 1
This lesson features step-by-step example problems that explain how to solve inequalities that have absolute values in them. [23:29]
Other
Math Snacks: Number Rights
Whole numbers are no better than any others! Practice plotting values on the number line as a passionate activist rises up and demands equity for all numbers, including fractions and decimals. A teaching guide with printable resources is...
Math Antics
Math Antics: Negative Numbers
Gain a basic understanding of negative numbers by watching this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [8:26]
Khan Academy
Khan Academy: Equivalent Fractions on Number Lines
The Teacher uses number lines to teach equivalent fractions.
Khan Academy
Khan Academy: Addition and Subtraction With Number Lines
Watch as Sal figures out which number line matches up with a 2-digit addition or subtraction problem. [1:52]
PBS
Pbs Math Club: What Is an Integer?
This episode of Math Club defines integers, explains the difference between positive and negative numbers, shows how integers are represented on a number line, and demonstrates how to determine integers with greater value. [4:30]
Homeschool Math
Homeschool Math: Numbers With One Decimal Digit Tenths
A complete lesson with video instruction and exercises about numbers with one decimal digit (tenths). [5:32]
Homeschool Math
Homeschool Math: Three Decimal Digits Thousandths
A 5th grade complete lesson with video instruction and exercises about decimals with three decimal digits. Includes writing them as fractions, place value & expanded form, and decimals on a number line.