Ratios and Proportions

By Allen Reed, Douglas Jensen

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

An Introduction to the Powers of 10

By Kevin Ritzman

The learner will evaluate powers of 10 with integer exponents and multiply decimal numbers by powers of 10 with integer exponents.

Units of Measurement

By Barbara Anderegg

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

Math Reasoning: The Parts Room

By Dave Bunnow, Rosie Bunnow

Learners apply math problem-solving skills in a workplace simulation. This learning object has audio content.

Math Reasoning: Buying the Paint

By Rosie Bunnow

Learners use basic math skills in a workplace situation.

Measuring Length in the Metric System (Mobile Version)

By Nabila Dahche

In this interactive lesson, students read about how units in the metric system are related to each other and practice locating measurements on a metric line.

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.

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.

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.

Casio fx-260 Solar Calculator - Finding the Keys

By Suzi Hunsader

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

Casio fx-260 Solar Calculator - Defining the Keys

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

Least Common Multiple

By Barb Hummel

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

Sorting Out Math Symbols

By Barbara Laedtke

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

Welcome to the World of Prime Numbers

By Jeganathan Sriskandarajah

In this learning activity you'll use a chart and a calculator to find prime numbers 1 and 100.

Scientific Notation - What is it?

By Danene Dusenske

In this learning activity you'll explore what scientific notation is and how it's used to express very large and very small numbers.

Fraction Basics

By Mary LeBrun

In this learning activity you'll identify fractions and view illustrations of fractions.

Simplifying Complex Fractions #1

By Annette Czarnecki

In this animated activity, learners listen to instructions for simplifying a complex fraction by finding the least common denominator. This learning object requires a computer that is equipped with speakers.

Operations with Zero

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

Scientific Notation - Converting Numbers Smaller Than 1 to Scientific Notation

In this learning activity you'll read an explanation of scientific notation and practice expressing numbers smaller than 1 in scientific notation.

Solving Percent Problems Using the Grid Method

By Laurie Jarvis

In this learning activity you'll calculate percentages using a grid to solve problems.

Understanding Rounding

In this learning activity you'll practice rounding numbers.

Multiplying and Dividing Signed Numbers

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

Calculating Exponents

By Francine Nettesheim

In this learning activity you'll calculate exponents. You'll practice breaking down exponents and calculating the results.

Geometric Figures and Parts

In this learning activity you'll identify identify two-dimensional geometric shapes in a matching exercise.

Right Triangles That Are Special: Using the Pythagorean Theorem

By Michele Williams

In this learning activity you'll apply the Pythagorean Theorem to isosceles and equilateral triangles.