An Introduction to Algebraic Word Problems

By Kevin Ritzman

In this animated object, learners follow the steps for solving word problems using algebra. An introductory example is explained.

Labeling a Right Triangle

By Roy Peterson

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

Determinant of the Third Order

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

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.

Reconciling a Business Checking Account Statement

By Virginia Riggs

Learners examine a bank statement and a reconciliation form and study how to balance a checking account.

An Algorithm for Converting a Decimal Number to an Octal Number

In this animated object, learners examine a systematic method for converting a decimal number (base 10) into an octal number (base 8).

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.

Simplifying Algebraic Expressions: Division

By Allen Reed, Douglas Jensen

Learners read definitions of the terminology associated with algebraic operations and then follow steps to use the fundamental laws of division to simplify algebraic expressions.

Mathematical Expression of an AC Sine Wave

Students view the mathematical expression of an AC waveform with respect to time (t) and read about the different components of this expression.

Inverse Variation

By Terry Lark

In this learning activity you'll practice calculating an inverse variation problem.

Order of Operations

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.

The TI-83 Plus Calculator: Complex Number Conversion

Learners examine how to convert numbers from rectangular to polar form and from polar to rectangular form using a TI-83 Plus calculator.

Quadratic Variation

In this learning activity you'll practice calculating a quadratic variation problem.

Binary to Decimal Number Conversion

In this learning activity you'll practice calculating the between the binary number system and the decimal number system.

The TI-83 Plus Calculator: Using the Arctangent Function

Learners read how to use the arctangent function to calculate the theta of an angle. The proper keystrokes are displayed.

Statics - Trig: Pythagorean Theorem Calculations Using a TI-86

In this animated and interactive object, the learner uses a TI-86 calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

Getting Acquainted With Your Calculator

By Judy Jones

In this learning activity you'll practice using your scientific calculator to fill in a mathematical crossword puzzle.

Calculating the Determinant of a 2x2 Matrix

In this learning activity you'll calculate the determinant of a 2x2 matrix.

Excel: Complex Addition

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

Numerical Curiosities: Part 3

By Jeganathan Sriskandarajah

In this interactive object, part 3 in a series, learners follow the steps of the “mathemagician” to examine four numerical curiosities: What’s Special About 1089, Perfect Squares: 1089 and 9801, The Mathematical Significance of 1776, and The Calculator Number Game. The learner will also study six number patterns and look at one remarkable table. Immediate feedback is provided.

Variation

In this learning object you'll review direct, inverse, joint, quadratic, and combined variations.

Combined Variation

In this learning activity you'll practice calculating a combined variation problem.

Personal Savings/Spending Plan for Adults - Actual

By Kristin Biekkola

In this learning activity you'll review information and exercises from the planning part of the "Personal Savings/Spending Plan for Adults" learning object.

Learning About Your Earnings

By Michele Williams

In this learning activity you'll practice reading and interpreting a paychecks and paycheck stub.

Statics - Trig: The Law of Cosines Using a TI-36X Calculator

Learners apply the Law of Cosines to determine forces using a TI-36X calculator in this animated object.