Multiplying Monomials
By Roy Peterson
In this learning activity you'll identify and calculate the multiplication of monomials.
Slope and Intercept on Graphing Calculators
By Ron Keys
The learner reads directions for finding the slope, intercept, and correlation coefficient for a group of ordered pairs using one of eight different scientific calculators.
Solving Equations: Properties of Equality
By Allen Reed, Douglas Jensen
In this interactive object, learners examine the properties of equality and use those properties to solve simple equations.
Gear Ratio Concepts (Screencast)
By James Bourassa
In this screencast, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations.
Factoring a Quadratic Trinomial
In this learning activity you'll factor an algebraic expression of the form AX(Squared) + BX + C using the FOIL technique.
Karnaugh Maps
By Patrick Hoppe
Learners examine the Karnaugh map for a three-variable system. Several examples are given.
An Algebraic Word Problem Involving Motion: Case 2
By Kevin Ritzman
In this animated object, learners use an algebraic formula to solve the following problem: An airplane travels a certain distance with the wind in the same amount of time that it takes to travel a shorter distance against the wind. Given a constant wind speed, what is the speed of the plane without a wind?
Excel: Determining the Square Root of a Complex Number
Learners view the steps for determining the square root of a complex number in Excel.
A Visual Approach To Simplifying Radicals
In this animated object, learners follow a process for simplifying radicals.
Fundamental Laws of Algebra
Learners review the fundamental laws of algebra including the commutative law of addition, the commutative law of multiplication, the associative law of addition, the associative law of multiplication, and the distributive law. Examples are given.
Identifying the Number of Significant Digits
By Ron Wallberg
Learners will identify the number of significant digits in practice problems.
Excel: Entering a Complex Number
Learners examine the complex number function to convert real and imaginary coefficients into a complex number.
The TI-83 Plus Calculator: Using the LOG Function
Students follow the correct keystrokes to calculate the logarithm of a number.
Statics: Resultant Calculations via Graphical Method
By Steve Whitmoyer
In this interactive learning object, students calculate a resultant of multiple forces acting in a concurrent, coplanar condition.
Numerical Curiosities: Part 4
By Jeganathan Sriskandarajah
In this fourth part in a series, learners follow the steps of the “mathemagician” to examine three numerical curiosities: Be a Psychic by Predicting Birthdays, Predict a Card with Mind Reading, and Predict the Three Die Values Your Opponent Has Rolled. Learners will also study palindromic numbers and look at two alphametric puzzles.
Quadratic Variation
By Terry Lark
In this learning activity you'll practice calculating a quadratic variation problem.
Joint Variation
In this learning activity you'll practice calculating a joint variation problem.
Simplifying Algebraic Expressions: Multiplication
Learners read definitions of the terminology associated with algebraic operations and then follow steps to use the fundamental laws of multiplication to simplify algebraic expressions.
Variation - Application Problems
In this learning activity you'll practice two variation application problems.
Variation
In this learning object you'll review direct, inverse, joint, quadratic, and combined variations.
Numerical Curiosities: Part 2
In part 2 of this series, learners follow the steps of the “mathemagician” to examine these numerical curiosities: The 189 Challenge; An Armstrong Number: What’s Special About 153? Is 495 Different or Indifferent? Is 6174 Different or Indifferent? It is always 618, and Beginning and Ending the Same.
Combined Variation
In this learning activity you'll practice calculating a combined variation problem.
Solving Systems of Linear Equations Using the Addition or Subtraction Method (Screencast)
In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."
Solving Equations that Contain Algebraic Fractions
By Jim Cihak
Learners use the lowest common denominator to simplify and then solve equations with algebraic fractions. Immediate feedback is provided. This animated object has audio content.
Simplifying Algebraic Fractions that Contain No Addition or Subtraction
In this highly interactive and animated object, learners follow a step-by-step process to reduce algebraic fractions, which contain no addition or subtraction, to their simplest, most elementary form. Immediate feedback is provided. This activity has audio content.