# Content for Lifelong Learning

__Fractions and All Their Parts, Part One__

Fractions and All Their Parts is a three-part series that combines colorful animations with imaginative examples to explain fractions and how they are used in real life. Part One describes what fractions are and why they are useful. Numerator and Denominator are defined and illustrated. Work with fractions begins by finding the fraction of a number. Each lesson ends with a review to ensure the concepts have been understood.

__Fractions and All Their Parts, Part Two__

Fractions and All Their Parts is a three-part series that combines colorful animations with imaginative examples to explain fractions and how they are used in real life. This video - Part Two -illustrates the concept of equivalent fractions and how to simplify fractions. Improper fractions are introduced and their relationship to mixed numbers is explained. Each lesson ends with a review to ensure the concepts have been understood.

__Fractions and all their Parts, Part Three__

Fractions and all their Parts is a three-part series that combines colorful animations with imaginative examples to explain fractions and how they are used in real life. This video - Part Three show how to add and subtract mixed numbers. Mixed numbers are changed to improper fractions and common denominators are found. Each lesson ends with a review to ensure the concepts are understood.

__Decimals: To Be Exact, Part One__

Decimals: To Be Exact is a two-part series that clearly presents the concept of decimal numbers. This video, Part One is divided into three lessons.

-Lesson One develops the concept if being exact when measuring or counting.

-Lesson Two defines decimal numbers, and illustrates the function of the decimal point.

-Lesson Three extends the place value to the right of the decimal point and presents guidelines for reading and writing decimals correctly.

__Decimals: To Be Exact, Part Two__

Decimals: To Be Exact is a two-part series that clearly presents the concept of decimal numbers. This video; Part Two, is divided into three lessons:

-Lesson One explores the concept of place value to the right of the decimal point.

-Lesson Two illustrates how both decimal numbers and fractions express parts of a whole or a set.

Lesson Three models the process of adding and subtracting decimal numbers

__What are Variables?__

What are Variables shows how to express simple problems in the form of "mathematical sentences", and introduces the idea of using a symbol to hold a place for a value. Unknown numbers are explained and expanded to include variables. The colorful and engaging animations and lesson bridge the gap between math as an abstract concept and math that describes the physical world. For grades 5 and up.

__Which Way is Minus?__

Which Way is Minus? is a four-lesson video which introduces and develops the concept of negative and positive numbers. This colorful and simple video employs animated illustrations to explain the concept. The idea that mathematics exists to describe the physical world is reinforced. For grades 5 and up.

__The World of Circles__

The World of Circles defines a circle and its parts. Radius, diameter, circumference, area and the concept of Pi are explained with animated graphics. Prerequisites are an understanding of decimals and basic math skills. The concept of substituting variables into formulas is reinforced. For grades 4 and up.