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EAN-139780131144255   EAN-13 barcode 9780131144255
Product NameTeaching Science For Understanding: A Practical Guide For Middle And High School Teachers
LanguageEnglish
CategoryBook / Magazine / Publication
Short DescriptionPaperback
Amazon.comA Buy on Amazon ~ 0131144251
Price New44.00 US Dollars    (curriencies)
Price Used3.72 US Dollars    (curriencies)
Width0.7 inches    (convert)
Height10.8 inches    (convert)
Length8.2 inches    (convert)
Weight24.8 ounces    (convert)
AuthorJames J. Gallagher
Page Count144
BindingPaperback
Published04/10/2006
Long DescriptionTeaching Middle and High School Science for Understanding: A Practical Guide for Teachers provides a theoretical and practical introduction to teaching science for understanding and application. The book is grounded in a new paradigm for science education that is consistent with the Project 2061, National Science Education Standards and reform programs in many states. It is based on formal research and on experiences of teachers who have been successful in transforming their classrooms from traditional forms of instruction to an environment where students learn to understand science and apply it in their own lives. The author's experience in classrooms, and with practicing teachers in the U.S. and in several other nations, add richness to this book as a resource for helping teachers improve their professional effectiveness. The author demonstrates science teaching through three different levels of learning activities: building students’ base of information , developing understanding , applying knowledge Each chapter guides you through the type of planning and instruction you will need to create a constructivist environment in your classroom, providing you with specific activities and examples to illustrate how you can teach science for understanding. 
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Modified04-30-2020 3:45:26pm
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SHA256045d437ffbba9f87c42714c9374bc767bd7ac27d19bb56d1a619fc015c33d127
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Code 128 Barcodes

Code 128 is a high-density 1D barcode symbology. This barcode set makes use of the entire 128 ASCII characters which include letter, number and symbols.

Code 128 Barcode

As with all barcodes, there are indicators to identify where the barcode starts and stops. These are marked in yellow below. Code 128 also has a check character which has been marked in green. The remainder of the barcode is the data being encoded. The text below the barcode is optional and is for human consumption in the event the barcode can't be scanned or if people also need to know what the code means.

Code 128 Barcode

Each character in the barcode symbol is composed of three bars and three spaces. Each bar or space must range from 1-4 units and the sum of all the width of all bars must work out to an even number. The stop marker is special because it adds an extra bar of 2 units at the very end (4 bars and 3 spaces). There are three different start markers to to identify which code set is being used. To represent all 128 characters, the code sets can be within a single barcode as needed by using control characters 98-101 (depending on the code set).

The check character is calculated by summing the value of each character and multiplying it by its position. The start character is also part of the sum but is added without weight (multiply by 1 just like the first encoded data character) then when you have the sum take the modulo 103 remainder. This gets a little more complex when mixing modes within a single barcode.