Geometric Figures and Parts

By Mary LeBrun

In this learning activity you'll identify identify two-dimensional geometric shapes in a matching exercise.

Gear Ratio Concepts (Video)

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.

Gear Ratio Concepts

In this animated object, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations. A quiz completes the activity.

Fundamental Laws of Algebra

By Allen Reed, Douglas Jensen

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.

Fraction Basics

In this learning activity you'll identify fractions and view illustrations of fractions.

Finding the Lowest Common Denominator for Algebraic Fractions

By Jim Cihak

In this interactive and animated object, learners follow instructions for finding the lowest common denominator for a group of algebraic fractions. Immediate feedback is provided. This activity has audio content.

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.

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.

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.

Excel: Rectangular to Polar Conversion for the Phase Angle in Radians

By Patrick Hoppe

The conversion from rectangular to polar mode phase angle in radians is demonstrated in Excel.

Excel: Rectangular to Polar Conversion for Magnitude

Learners read how to convert complex numbers to their polar equivalent in Excel.

Excel: Entering a Complex Number

Learners examine the complex number function to convert real and imaginary coefficients into a complex number.

Excel: Determining the Square Root of a Complex Number

Learners view the steps for determining the square root of a complex number in Excel.

Excel: Determining the Complex Conjugate

Students read how to use the IMCONJUGATE() function to convert complex numbers to their conjugate in rectangular form.

Excel: Converting Radians to Degrees

Students read how to use the DEGREES() function to convert radians to degrees.

Excel: Complex Subtraction

Students view the steps for subtracting complex numbers in Excel.

Excel: Complex Division

Students view the steps for dividing complex numbers in Excel.

Excel: Complex Addition

Students view the steps to follow to add complex numbers in Excel.

Evaluating Trigonometric Ratios

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

Evaluating the Six Trigonometric Functions

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

Dividing and Simplifying Algebraic Fractions

Learners follow step-by-step instructions for dividing algebraic fractions. They begin by reducing the fractions to their simplest form. Immediate feedback is provided. This activity has audio content.

Direct Variation

By Terry Lark

In this learning activity you'll walk through a direct variation problem.

Determinant of the Third Order

In this learning activity you'll evaluate the determinant of a 3 X 3 matrix.

Creating Histograms

By Mary Lee Rudnick-Kaun

Students follow steps to transfer data from a list to a histogram.

Cramer's Rule

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