Simplifying Algebraic Expressions: Addition & Subtraction

By Allen Reed, Douglas Jensen

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

Unity Fractions/Unit Cancellation

By Terry Lark

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

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.

Complete the Square

By Cynthia Sanvidge

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

Sine Bar

By Barbara Anderegg

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

The Right Circular Cylinder

Learners study the properties of a right circular cylinder and use geometric formulas to find volume and surface area.

An Algebraic Word Problem Involving Motion: Case 1

By Kevin Ritzman

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

Evaluating the Six Trigonometric Functions

By Roy Peterson

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

Units of Measurement

In this learning activity you'll explore units of measurement.

Reading and Interpreting Bar Graphs

By Francine Nettesheim

In this learning activity you'll identify the various parts of a bar graph, read and interpret its data, and calculate the data to solve various application problems.

Adding and Subtracting Signed Numbers

By Mona Wenrich

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

Vectors in Polar Form

By Jolene Hartwick

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

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 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 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.

Scientific Notation - Converting Scientific Notation to Ordinary Numbers

By Danene Dusenske

In this learning activity you'll review an explanation of scientific notation and complete exercises to convert scientific notation to ordinary numbers.

Personal Spending/Savings Plan for Teenagers

By Kristin Biekkola

In this learning activity you'll review the basics of budgeting, income, and spending. Using an on-line form, you can create your own monthly budgets and a pie chart of your spending habits.

Personal Savings/Spending Plan for Adults - Projected

In this learning activity you'll complete your own budget to understand the concept of needs and wants relating to building a personal budget.

Multiplication of a String of Signed Numbers

Students read how to organize their work when multiplying more than two signed numbers. A review and practice problems complete the activity.

Ratios and Proportions

In this interactive object, learners simplify ratios and solve problems using proportions. All terms are defined.

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 - Establishing Class Boundaries: Sixth in a Series

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

Evaluating Trigonometric Ratios

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

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.

Casio fx-260 Solar Calculator - Defining the Keys

By Suzi Hunsader

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