Addition and Subtraction Applied to Clocks PDF ePub eBook

Books Info:

Addition and Subtraction Applied to Clocks free pdf The exercises of this arithmetic workbook challenge students to apply their addition and subtraction skills to the concept of time. Students must think their way through the problems because adding and subtracting modern clock times differs from ordinary addition and subtraction in the following ways: (1) Time is cyclic - that is, the 1 o'clock hour follows the 12 o'clock hour- (2) you may subtract a 'larger' time from a 'smaller' time and obtain a positive result - e.g. 7:30 a.m. - 11:30 a.m. = 20 hours- and (3) the 24-hour day is divided into two 12-hour halves - a.m. and p.m. These complications are similar to the difficulties encountered in word problems - but these exercises have no words. In order to teach students how to apply their arithmetic skills to modern clock times, the first page of each chapter provides a concise description of the problem-solving strategy followed by 4 to 5 examples. These examples should serve to guide the student's reasoning until the student is able to independently solve the problems. The answers to the exercises are tabulated in the back of the book so that, by checking their answers, students may learn from any mistakes that they might make. These exercises offer additional practice building arithmetic fluency and give students experience applying math concepts to practical situations. It is a common life situation to know what time it is now and for it to be useful to know how much time will elapse before an appointment. This workbook can also serve as a useful way to engage advanced and gifted students who are reluctant to practice their basic arithmetic skills. This book is conveniently divided up into five chapters. Each chapter focuses on either addition or subtraction. The first two chapters involve just adding and subtracting minutes from times. The next two chapters include both hours and minutes. The final chapter involves figuring out how many hours and minutes two given times are apart.

About Chris McMullen Ph D

Chris McMullen is a physics instructor at Northwestern State University of Louisiana. He earned his Ph.D. in phenomenological high-energy physics (particle physics) from Oklahoma State University in 2002. Originally from California, he earned his Master's degree from California State University, Northridge, where his thesis was in the field of electron spin resonance. As a physics teacher, Dr. McMullen observed that many students lack fluency in fundamental math skills. In an effort to help students of all ages and levels master basic math skills, he has published this Improve Your Math Fluency Series of math workbooks on arithmetic, fractions, and algebra.

Details Book

Author : Chris McMullen Ph D
Publisher : Createspace
Data Published : 30 June 2010
ISBN : 145363228X
EAN : 9781453632284
Format Book : PDF, Epub, DOCx, TXT
Number of Pages : 144 pages
Age + : 5-9 years
Language : English
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  • Addition and Subtraction Applied to Clocks free pdfAddition and Subtraction Applied to Clocks

    . The exercises of this arithmetic workbook challenge students to apply their addition and subtraction skills to the concept of time. Students must think their way through the problems because adding