8-9 Algebraic Thinking - Videotapes

• Math Vantage videotape series (ENC-013915) Algebraic expressions This series of videotapes aims to motivate pre-algebra students with high energy footage of real world situations that illustrate key mathematical concepts and applications. This videotape, part of the Language of Mathematics unit, aims to illustrate the value and use of algebraic expressions for describing patterns (moving from the general to the particular) and for communicating ideas efficiently. The material visually links algebraic expressions to formulas for calculating voltage, acceleration, and the distance to a thunderstorm. Also available for this unit is a teacher's resource book with lesson suggestions and student worksheet packages.

• Math Vantage videotape series (ENC-013916) Algebraic sentences This series of videotapes aims to motivate pre-algebra students with high energy footage of real world situations that illustrate key mathematical concepts and applications. This videotape, part of the Language of Mathematics unit, describes how chemical formulas are used by a swimming pool manager to maintain good water quality and illustrates how the movement in a golf swing can be described with equations. The material visually links algebraic sentences to formulas for calculating speed, electric current, and temperature using the chirps of a cricket per fifteen seconds. Also available for this unit is a teacher's resource book with lesson suggestions and student worksheet packages.

• Math Vantage videotape series (ENC-013917) Digitizing with binary power The series of videotapes aims to motivate pre-algebra students with high energy footage of real world situations that illustrate key mathematical concepts and applications. This videotape, part of the Language of Mathematics unit, explores the development of number systems beyond base ten and includes descriptions of Mayan number symbols and Morse code. The analog to digital conversion of real world activities to binary data for computer use is explained along with the advantages of binary codes for editing, storing, and transmitting data. Also available for this unit is a teacher's resource book with lesson suggestions and student worksheet packages.

• Math Vantage videotape series (ENC-014202) Integers The series of videotapes aims to motivate pre-algebra students with high energy footage of real world situations that illustrate key mathematical concepts and applications. This videotape, part of the Language of Mathematics unit, presents positive and negative numbers as key elements needed to communicate ideas in a variety of fields, including movie stunt design, the stock market, and mountain altitude and ocean depth measurement. Also included in this kit is a teacher's resource book with lesson suggestions and student worksheet packages.

• Math Vantage videotape series (ENC-014060) Rates and ratios : comparisons The series of videotapes aims to motivate pre-algebra students with high energy footage of real world situations that illustrate key mathematical concepts and applications. This videotape illustrates how to compare two quantities with a ratio or rate, how to convert rates into unitary rates, and how to convert rates using equivalent rate conversions. Also available for this unit is a teacher's resource book with lesson plans, assessment suggestions, and student worksheets.

• Math Vantage videotape series (ENC-014061) Proportions : expressing relationships The series of videotapes aims to motivate pre-algebra students with high energy footage of real world situations that illustrate key mathematical concepts and applications. This videotape visually illustrates the importance of proportional reasoning while using proportions and ratios to explain a variety of real world applications, including how the gears on a bicycle affect speed. Also available for this unit is a teacher's resource book with lesson plans, assessment ideas, and student worksheets

• Math Vantage videotape series (ENC-014062) Proportions : the shrinking and stretching machine The series of videotapes aims to motivate pre-algebra students with high energy footage of real world situations that illustrate key mathematical concepts and applications. This videotape shows the application of proportional reasoning to estimate and compute scales for models and drawings, to enlarge or reduce drawings, and to estimate and calculate distances on a map. Also available for this unit is a teacher's resource book with lesson plans, assessment ideas, and student worksheets.

• Math Vantage videotape series (ENC-014063) Percents: Say it with hundredths This unit of videotapes on proportional reasoning aims to motivate pre-algebra students with high energy footage of real world situations that illustrate key mathematical concepts and applications. This videotape emphasizes percent as meaning compared to 100 and visually links percents and fractional parts of a whole to a hundredths chart. The aim is for students to be able to relate percents and fractions as representing a portion of a whole quantity. Also available for this unit is a teacher's resource book with lesson plans, assessment ideas, and student worksheets.