Gear Ratio Concepts

By James Bourassa

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.

Sine Bar

By Barbara Anderegg

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

An Algorithm for Converting a Hexadecimal Number to a Decimal Number

By Kevin Ritzman

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.

Simplifying Ratios With Fractions

By Mona Wenrich

In this learning activity you'll review sample problems and practice simplifying ratios.

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.

The Regular Square Pyramid

By Allen Reed, Douglas Jensen

Learners study the properties of a regular square pyramid and use geometric formulas to find volume and surface area.

Unity Fractions/Unit Cancellation

By Terry Lark

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

The Normal Distribution

By Jolene Hartwick

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.

Evaluating Trigonometric Ratios

By Roy Peterson

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

Understanding Place Value

By Laurie Jarvis

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

Best Buy Shopping

By Michele Williams

In this learning activity you'll discover how to calculate the best priced items and improve your financial literacy.

Practical Trigonometry

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

Vectors in Polar Form

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

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.

Plotting Points on a Coordinate System

In this learning activity you'll identify points on a coordinate system.

Excel: Converting Radians to Degrees

By Patrick Hoppe

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

An Algebraic Word Problem Involving Motion: Case 1

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

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

Converting Numbers from Standard Form to Engineering Notation

By Ron Wallberg

Learners convert a number from standard form to engineering notation.

Conversions: Fractions-Decimals- Percents Pre-Test

By Suzi Hunsader

Students perform conversions among fractions, decimals, and percentages in this assessment.

Pythagorean Theorem

In this learning activity you'll use the Pythagorean Theorem to calculate the lengths of the legs and hypotenuse of a right triangle.

Buying a Car: What It Really Costs with Finance Charges

In this learning activity you'll calculate the difference in the total cost of a new car when using cash and when paying for the car with a 60-month loan.

Least Common Multiple

By Barb Hummel

Learners practice a technique for finding the least common multiple of a group of numbers.

Subtracting Fractions with Unlike Denominators

By Bill Truttschel

In this animated and interactive object, learners view two examples of how to subtract fractions with unlike denominators and then work five similar problems.

The Right Circular Cylinder

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