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.

Grouped Numerical Frequency Distributions - Definitions: Second in a Series

By Thomas Pomykalski

In this interactive object, learners read the definitions of terms associated with the construction of a grouped frequency distribution. A brief quiz completes the activity.

Simplifying Algebraic Fractions that Contain No Addition or Subtraction

By Jim Cihak

In this highly interactive and animated object, learners follow a step-by-step process to reduce algebraic fractions, which contain no addition or subtraction, to their simplest, most elementary form. Immediate feedback is provided. This activity has audio content.

Important Zeros

By Mona Wenrich

In this learning activity you'll assess which zeros are important when defining a number and which zeros can be dropped.

Excel: Entering a Complex Number

By Patrick Hoppe

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

What Is a Radian?

By Roy Peterson

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

By Kevin Ritzman

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

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.

Sorting Out Math Symbols

By Barbara Laedtke

In this learning activity you'll review different math symbols and identify them in a matching exercise.

Understanding Place Value

By Laurie Jarvis

In this learning activity you'll review the place values of whole numbers.

Scientific Notation - Converting Numbers Larger Than 1 to Scientific Notation

By Danene Dusenske

In this learning activity you'll review scientific notation and practice expressing numbers larger than 1.

Multiplying and Dividing Signed Numbers

Students read the rules used in multiplying and dividing signed numbers. They view examples and work practice problems.

Statics - Trig: Law of Cosines Using a TI-86 Calculator

By Steve Whitmoyer

In this interactive and animated object, learners apply the Law of Cosines to determine forces using a TI-86 calculator.

Strength of Materials: The Centroid of a Triangle

In this animated and interactive object, learners calculate the area and centroid of a triangle.

The Rectangle

By Allen Reed, Douglas Jensen

In this animated activity, learners read about the properties of a rectangle and its components. They then work practice problems to find the perimeter and area of rectangles.

Grouped Numerical Frequency Distributions - Identifying Low and High Values: Third in a Series

Students follow step-by-step directions for entering data into a spreadsheet and reporting the results.

Grouped Numerical Frequency Distributions - Determining the Range, Class, and Width: Fourth in a Series

Students examine an Excel spreadsheet to determine range, class, and width.

Casio fx-260 Solar Calculator - Finding the Keys

In this learning activity you'll practice identifying keys on the Casio fx260 Solar Calculator.

What I Want Now....The Hidden Costs of Rent-to-Own

By Kristin Biekkola

In this learning activity you'll analyze the costs of rent-to-own buying plans and compare those plans to other consumer strategies.

Excel: Rectangular to Polar Conversion for Magnitude

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

Operations with Zero

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

Grouped Numerical Frequency Distributions: An Overview -- First in a Series

In this interactive object, students read about organizing data in a tabular form. A brief quiz completes the activity. This is the first in a series of six learning objects.

Joint Variation

By Terry Lark

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

Solving Systems of Linear Equations Using the Addition or Subtraction Method

In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."

The Right Circular Cone

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