An Algorithm for Binary Subtraction

By Kevin Ritzman

Students use the Base Minus One Complement method to perform binary subtraction. This learning activity has audio content and immediate feedback.

The Normal Distribution and the Empirical Rule

By Jolene Hartwick

In this learning activity you'll use the Empirical Rule to calculate the percentages of data between two data points.

Factoring by the Difference of Two Perfect Squares

By Roy Peterson

In this learning activity you'll factor problems using the difference of two perfect squares.

Multiplying Monomials

In this learning activity you'll identify and calculate the multiplication of monomials.

Learn to Count by Common Radian Units

By Laura Shears

The target audience of this learning object is trigonometry students who have already learned what a radian is and have already derived the key values of the coordinates associated with common radian units, but now need to practice finding those values on the unit circle. The student does not need to know the definition of the six trig functions to do this activity.

Cramer's Rule

In this learning activity you'll solve systems of two linear equations in two unknowns by determinants.

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.

Simplifying Square Roots

In this learning activity you'll simplify square roots involving the product of a numeric and variable term.

Statistical Data Types

By Thomas Pomykalski

Learners read about the different uses of the word "data." They will test themselves on examples of data that is singular, plural, qualitative, quantitative, nominal, ordinal, interval, rational, discrete, or continuous.

An Algebraic Word Problem Involving Motion: Case 1

In this animated and interactive object, learners use an algebraic formula to solve a problem involving distance, rate, and time.

Complete the Square

By Cynthia Sanvidge

In this learning activity you'll practice calculating quadratic equations using the 'completing the square' method.

Grouped Numerical Frequency Distributions - Establishing Class Boundaries: Sixth in a Series

Learners follow steps to establish class boundaries and tally the data using a spreadsheet.

Simplifying Algebraic Fractions that Contain Addition and/or Subtraction

By Jim Cihak

In this interactive object, learners follow step-by-step instructions for reducing algebraic fractions, which contain addition and/or subtraction, to their simplest form. This activity has audio content.

An Algorithm for Converting a Hexadecimal Number to a Decimal Number

In this animated and interactive object, learners follow two methods for converting a hexadecimal number to a decimal number. They test their knowledge in exercises at the end of the learning object.

Evaluating the Six Trigonometric Functions

In this learning activity you'll evaluate the six trig functions using a scientific calculator.

What Is a Radian?

In this learning activity you'll explore a graphical depiction of a radian for angular measurement.

An Algorithm for Converting a Decimal Number to a Binary Number

In this learning activity you'll examine a systematic method for converting a decimal number (base 10) into a binary number (base 2).

Converting Numbers from Standard Form to Engineering Notation

By Ron Wallberg

Learners convert a number from standard form to engineering notation.

An Algorithm for Converting a Decimal Number to a Hexadecimal Number

In this animated activity, learners examine a systematic method for converting a decimal number (base 10) into a hexadecimal number (base 16).

Unity Fractions/Unit Cancellation

By Terry Lark

In this learning activity you'll demonstrate how to use unity fractions to complete conversion calculations.

The Normal Distribution

In this learning activity you'll explore normal distribution and enter values for the mean and the standard deviation of normally distributed data and observe the resulting changes in the shape of the normal curve.

Grouped Numerical Frequency Distributions - Definitions: Second in a Series

In this interactive object, learners read the definitions of terms associated with the construction of a grouped frequency distribution. A brief quiz completes the activity.

Solving Equations that Contain Algebraic Fractions

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.

An Algebraic Word Problem Involving Motion: Case 2

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?

An Algorithm for Converting an Octal Number to a Decimal Number

Learners examine two methods for converting an octal number to a decimal number. Exercises are provided at the end of the learning object.