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.

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.

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.

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.

Simplifying Square Roots

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

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.

Unity Fractions/Unit Cancellation

By Terry Lark

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

Adding or Subtracting Algebraic Fractions

By Jim Cihak

Learners follow step-by-step instructions for finding the lowest common denominator for a group of algebraic fractions and then enter their answers to three problems. Immediate feedback is provided. This activity has audio content.

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.

Cramer's Rule

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

Complete the Square

By Cynthia Sanvidge

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

Evaluating Trigonometric Ratios

In this learning activity you'll evaluate the Sine, Cosine, and Tangent ratios of a right triangle.

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.

Vectors in Polar Form

In this learning activity you'll place given vectors in correct positions on the Cartesian coordinate system.

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.

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.

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.

Finding the Coordinates of the Point Where an Arc Blends Into a Line

By Alan Dohm

Students use trigonometry to find the coordinates of the blending point where a line and an arc meet. Learners are given the coordinates of the center of the arc, the radius of the arc, and the direction of the line.

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).

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.

Subtracting Binary Numbers by Adding the 2's Complement

In this learning activity you'll solve three binary subtraction problems using the 2's complement method.