Hi, what do you want to do?
Oswego City School District
Regents Exam Prep Center: Undefined Fractions
This algebra tutorial helps students determine when a fraction is undefined and includes examples with rational expressions.
Texas Instruments
Texas Instruments: Undefined Terms and Definitions
This is a LearningCheck quiz on undefined terms in the beginning of Geometry.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: When Is a Slope 0 or Undefined?
At this site Dr. Math gives a discussion on the slopes of lines. The Dr. gives an analogy between the slope of a line and walking up and down hills. The Dr. explores the concept of undefined and zero slopes through his response to a...
Texas Instruments
Texas Instruments: Linear Functions: Slope With Grid
Students learn to impose a grid on a line to quantify the steepness of a line. They learn that slope is the ratio of vertical change divided by the horizontal change. They also learn that lines can have slope that are positive, zero,...
Texas Instruments
Texas Instruments: Finding Slope Using Rise Over Run
Students seem to have trouble finding the slope of a line using rise over run. This activity will allow the students to find slope of lines and tell the difference between lines of positive, negative, zero and undefined slope.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Equation for Undefined Slope
This site gives the equation for a vertical line which passes through 8 on the x axis. The Dr. explains why the equation is what it is by giving a more general equation for a line than y = mx + b.
ClassFlow
Class Flow: Slope
[Free Registration/Login Required] Slope (positive, negative, no, and undefined) in the real world.
TeachEngineering
Teach Engineering: Graphing Equations on the Cartesian Plane: Slope
The lesson plan teaches students about an important characteristic of lines: their slopes. Slope can be determined either in graphical or algebraic form. Slope can also be described as positive, negative, zero or undefined. Students get...
Texas Education Agency
Texas Gateway: Introduction to Coordinate Geometry
The students will use multiple representations of undefined terms on a coordinate plane to solve problems.
Oswego City School District
Regents Exam Prep Center: Slopes and Equations of Lines
Explanation of linear equations and four types of slopes: positive, negative, zero, and undefined. Practice problems for the students are provided and a reinforcement activity using a graphing calculator is offered for the teacher's use.
Oswego City School District
Regents Exam Prep Center: Lines and Planes
Use these resources in preparing instruction on undefined terms (points, lines, and planes), theorems relating lines and planes, and Euclidean and non-Euclidean geometry. You'll find three lessons on the aforementioned subject areas, an...
Texas Education Agency
Texas Gateway: Constructing and Justifying Statements About Geometric Figures
Students will distinguish between undefined terms, definitions, postulates, conjectures, and theorems and investigate patterns to make conjectures about geometric relationships.
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Slope of a Line
Through this tutorial, you'll know what slope is and how to determine it. View examples of positive, negative, zero, and undefined slope, follow step-by-step slope calculations, and complete practice problems at the end.
Math Medics
S.o.s. Math: Division by Zero in a Simple Fraction
This tutorial explains why division by zero is undefined. Gives examples and practice problems.
Texas Education Agency
Texas Gateway: Using Logical Reasoning to Prove Statements Are True
Given statements about a geometric relationship, the student will distinguish between the undefined terms, definitions, postulates, conjectures, and theorems to prove the statements are true.
Khan Academy
Khan Academy: Dividing by Zero
Practice identifying when a quotient is undefined because of division by zero. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Texas Education Agency
Texas Gateway: Connecting Postulates, Definitions, and Theorems
The student will distinguish the difference between undefined terms, definitions, postulates, conjectures, and theorems.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Reciprocals and Zero
Here is a site that clearly and thoroughly explains many topics related to reciprocals and the number zero, including the zero product property and the notion that dividing by zero is undefinable. There are example problems solved,...
Khan Academy
Khan Academy: Intro to Rational Expressions
This lesson will introduce you to rational expressions. You will learn how to determine when a rational expression is undefined and how to find its domain.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Coordinate Geometry
Get independent practice working with coordinate geometry. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
CK-12 Foundation
Ck 12: Algebra: Simplify Variable Expressions
[Free Registration/Login may be required to access all resource tools.] Evaluate and simplify variable expressions involving integer division
CK-12 Foundation
Ck 12: Arithmetic: Integer Division Grade 6
[Free Registration/Login may be required to access all resource tools.] Divide to find the quotients of positive and negative integers.
Sophia Learning
Sophia: Find Slope and Rate of Change
This learning tutorial demonstrates how to find the slope of a line and the rate of change for a table. The lesson includes several PowerPoint presentations about slope and even provides practice problems for students to test their...
Purple Math
Purplemath: Slope of a Straight Line
This lesson on slope explains the slope concepts, demonstrates how to use the slope formula, shows how to find slope in horizontal and vertical lines, and how to use slope to find whether the lines through the pairs of points are...