PBS
Pbs: Logical Leaps: Rational Numbers on the Number Line
In this interactive, use logic to solve riddles involving a wallaby jumping contest. Then, place each contestant's jump-a fraction, mixed number, or decimal between -5 and +5-at the correct point on the number line. Backward jumps are...
Utah Education Network
Uen: Ordering and Computing With Negative Fractions and Decimals
This lesson plan allows students to practice comparing and ordering rational numbers on a number line as well as computing with fractions and decimals. It provides an assessment plan and attachments for the lesson's activities.
Khan Academy
Khan Academy: Negative Symbol as Opposite
Recognize the negative sign as meaning the opposite of a number. Use the negative sign to find the opposites of numbers. In some items, we will find the opposite of an opposite. Students receive immediate feedback and have the...
Khan Academy
Khan Academy: Negative Number Addition and Subtraction: Word Problems
Negative number addition and subtraction: word problems
Khan Academy
Khan Academy: Interpreting Negative Number Statements
Practice problems interpreting negative number statements.
OER Commons
Oer Commons: The Effects of Positive & Negative Numbers
Seventh graders explore what happens to a hot air balloon when they add or remove units of weight or heat. This activity is an informal exploration of addition and subtraction with positive and negative integers.
PBS
Pbs: Addition of Positive and Negative Integers
Introducing a card game that your students can play in small groups to develop their addition skills. This video focuses on addition of positive and negative numbers and briefly touches on subtraction of integers.
PBS
Pbs: Multiplying and Dividing With Negatives
Deepen your understanding of multiplication and division of rational numbers. This interactive exercise focuses on the rules for finding the products and quotients of positive numbers, negative numbers, and fractions and then finding the...
Khan Academy
Khan Academy: Equivalent Expressions With Negative Numbers
In this exercise, students practice factoring algebraic expressions using the distributive property. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Houghton Mifflin Harcourt
Houghton Mifflin Harcourt: Saxon Activity Center: Graphing Calculator Activity: Positive and Negative [Pdf]
Order of operations with positive and negative numbers is the focus of this graphing calculator lesson. Included are detailed examples, demonstrations of key functions, and practice problems. Acrobat Reader required.
Calculator Soup
Calculator Soup: Adding and Subtracting Integers (Whole Numbers) Calculator
Use this calculator for adding and subtracting integers. Positive and negative whole numbers are integers. The calculator shows the work for the math and shows you when to change the sign for subtracting negative numbers.
ClassFlow
Class Flow: Negative Numbers
[Free Registration/Login Required] In this flipchart students apply their knowledge of integers to combine positive and negative integers and locate their position on a number line.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Multiplication Cards, Fill in the Blank
Students type the correct positive or negative number to complete the multiplication problems on these interactive flashcards. The problem changes color when the correct number is typed.
Help Algebra
Help algebra.com: Addition & Subtraction of Real Numbers
Using a number line, the technique for adding and subtracting real numbers is demonstrated. Notation and calculator use is also touched on at the end of the lesson.
Khan Academy
Khan Academy: Signs of Sums
Practice determining whether the sum of two numbers is positive, negative, or zero. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Addition & Subtraction: Find the Missing Value
Practice finding the missing value in an addition or subtraction equation involving negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: 6.ns Integers on the Number Line 2
Sixth graders examine negative numbers and their relationships in inequalities in this problem. Aligns with 6.NS.C.7.a.
Better Lesson
Better Lesson: Rational Numbers on the Number Line
The number line is a useful tool when ordering positive and negative rational numbers.
Alabama Learning Exchange
Alex: Positively f.u.n. !
This lesson will actively engage students to identify and add positive and negative integers. In cooperative groups, students will discuss everyday vocabulary that will activate students' existing background knowledge and set the purpose...
New York Times
New York Times: Steven Strogatz on the Elements of Math Series the New York Times
[Free Registration/Login Required] On this site, Cornell University mathematics professor, Steven Strogatz, shares his 15-part series of columns on the elements of math. He investigates topics ranging from negative numbers to subtraction...
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Multiplication Cards
Students multiply positive and negative numbers on these interactive flashcards. The problem changes color when the correct product is typed.
ClassFlow
Class Flow: Order Negative
[Free Registration/Login Required] The teacher will use this lesson plan flipchart to review positive and negative numbers.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Multiplication Flashcards
Students multiply positive and negative numbers with these interactive flashcards. The problem changes color when the correct number is typed.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Division Cards
Students practice dividing positive and negative numbers with these interactive flashcards. The problem changes color when the correct number is typed.