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.

Unity Fractions/Unit Cancellation

By Terry Lark

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

Casio fx-260 Solar Calculator - Using the Keys

By Suzi Hunsader

In this learning activity you'll practice using the keys on the Casio fx-260 Solar Calculator.

Identifying Key Words in Math Problems

By Lori Pennock, Sharon Chase, Robin Horne, Danene Dusenske, Barbara Foye

In this learning activity you'll read key words that direct you to add, subtract, multiply, or divide.

Subtracting Mixed Number Fractions with Borrowing

By Pat Walker

In this learning activity you'll perform subtraction calculations using borrowing with mixed number fractions.

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.

Multiplying Monomials

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.

Operations with Zero

Learners review the basic math operations involving zero, emphasizing that division by zero is undefined. Examples are given.

Order of Operations (Screencast)

By Barb Hummel

In this activity you'll calculate equations using the order of operations. You'll be introduced to what it is and how it works.

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.

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.

Sine Bar

By Barbara Anderegg

In this learning activity you'll examine how a sine bar is used to measure angles.

Labeling a Right Triangle

In this learning activity you'll identify the sides of a right triangle with respect to the angles.

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.

What Is a Radian?

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

Practical Trigonometry (Screencast)

After a brief review, the student solves five practical shop problems using right angle trigonometry.

Excel: Rectangular to Polar Conversion for Magnitude

By Patrick Hoppe

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

Statics - Trig: The Pythagorean Theorem Using a TI-36XCalculator

By Steve Whitmoyer

In this animated and interactive object, the learner uses a TI-36X calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

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.

Adding and Subtracting Signed Numbers

By Mona Wenrich

Learners follow the steps for adding and subtracting signed numbers and complete practice exercises.

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

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

Karnaugh Maps

Learners examine the Karnaugh map for a three-variable system. Several examples are given.