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.

Unity Fractions/Unit Cancellation

By Terry Lark

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

Units of Measurement

By Barbara Anderegg

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

Understanding Rounding

By Laurie Jarvis

In this learning activity you'll practice rounding numbers.

Understanding Place Value

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

The TI-83 Plus Calculator: The Power Function

By Patrick Hoppe

Learners examine how to raise a number to a power using the TI-83 Plus calculator. Sample problems are given using both real and complex numbers.

The Difference Between -(6)Squared and (-6)Squared

By Arlene Smith

In this learning activity you'll calculate problems using the negative both inside and outside of the parenthesis.

Subtracting Mixed Number Fractions with Borrowing

By Pat Walker

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

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.

Sorting Out Math Symbols

By Barbara Laedtke

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

Solving Percent Problems Using the Grid Method

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

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.

Simplifying Ratios With Fractions

By Mona Wenrich

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

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.

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.

Scientific Notation - Converting Scientific Notation to Ordinary Numbers

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

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.

Scientific Notation - Converting Numbers Larger Than 1 to Scientific Notation

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

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.

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.

Ratios and Proportions

By Allen Reed, Douglas Jensen

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

Plotting Points on a Coordinate System

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

Order of Operations

By Barb Hummel

In this activity you'll calculate equations using the order of operations. You'll be introduced to what it is and how it works.

Operations with Zero

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

Multiplying and Dividing Signed Numbers

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