Subtracting Mixed Number Fractions with Borrowing

By Pat Walker

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

Needs Vs. Wants

By Kristin Biekkola

In this learning activity you'll identify the difference between needs and wants related to building a personal budget.

Solving Percent Problems Using a Pyramid Grid

By MarQulyn McKinney

Students use the pyramid method to solve percent problems. The pyramid grid provides a visual way to set up the equation.

Multiplying Monomials

By Roy Peterson

In this learning activity you'll identify and calculate the multiplication of monomials.

Fundamental Laws of Algebra

By Allen Reed, Douglas Jensen

Learners review the fundamental laws of algebra including the commutative law of addition, the commutative law of multiplication, the associative law of addition, the associative law of multiplication, and the distributive law. Examples are given.

Long Division - Step-by-Step

By Barbara Laedtke

In this learning activity you'll calculate the answers to long division problems.

Measuring Length in the Metric System

By Nabila Dahche

In this learning activity you'll explore how units in the metric system are related to each other and practice locating measurements on a metric line.

Simplifying Algebraic Expressions: Addition & Subtraction

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

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.

Karnaugh Maps

By Patrick Hoppe

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

Solving Equations: Properties of Equality

In this interactive object, learners examine the properties of equality and use those properties to solve simple equations.

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.

Ratios and Proportions

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

Sine Bar

By Barbara Anderegg

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

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.

How to Convert from One Unit to Another in the Metric System

In this learning activity you'll practice converting from one metric unit to another.

Adding Fractions With Unlike Denominators

By Tina Dietzman

Learners follow steps to add fractions with different denominators. They also review fraction concepts, do a drag-and-drop exercise involving fraction terms, and add fractions with common denominators.

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.

Practical Trigonometry

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

Adding or Subtracting Algebraic Fractions

By Jim Cihak

Learners follow step-by-step instructions for finding the lowest common denominator for a group of algebraic fractions and then enter their answers to three problems. Immediate feedback is provided. This activity has audio content.

Learning to Use the Casio fx-260 Solar Calculator

By Suzi Hunsader

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

The Regular Square Pyramid

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

Cramer's Rule

In this learning activity you'll solve systems of two linear equations in two unknowns by determinants.

Unity Fractions/Unit Cancellation

By Terry Lark

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

Evaluating Trigonometric Ratios

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