By Mark Berends, Dan Koretz

ISBN-10: 0833030736

ISBN-13: 9780833030733

Observers have maintained that grades in secondary and postsecondary associations became inflated. This chance is a particularly critical hindrance to many schools and universities simply because such inflation can make it more and more tricky for them to tell apart between high-achieving scholars. This learn examines this risk by way of comparing adjustments in highschool grading criteria around the state as an entire from 1982 to 1992.

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Extra info for Changes in High School Grading Standards in Mathematics, 1982-1992

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Each technique will be discussed in terms of the physics involved, which are the usual/possible use, which are the constraints and limits, etc. In this introductory chapter, we have shown how several different techniques can be combined to improve the assessment. We have defined three types of combination, according to their purpose. In most cases, this combination remains informal, which means that the understanding of the real added value of combining a second (or a third) NDT method simply does not exist.

In: Al-Quadi, I. and G. ); Proc. NDE Conf. -18. August 2006, St. Louis, MO, USA, pp. 496–498. , Wiggenhauser H. Wollbold F. (1997) Comparison of pulse-echo methods for testing concrete. In: NDT&E International Sonderheft Vol. 30, 4, pp. 195–204. , Mayer K. (2008) Ultrasonic Imaging of Post-tensioned Concrete Elements: New Techniques for Reliable Localization of Grouting Defects, In: Alexander M. , Dehn F. and Moyo P. ); Proc. 2008, Kapstadt, CD-ROM, pp. 521–527. , Ballier G. (2009) Progress in ultrasonic tendon ducts imaging.

The main points are: • Automated scanning of large surface areas (see Fig. , 2008a]) 38 M. Krause and F. Mielentz Fig. , 2008b]. Several testing problems are now solvable with common techniques, others with help of synthetic aperture methods (reconstruction calculation, SAFT). Numerous testing tasks are in the intermediate state between research and systematic application. The uncertainty of the results depends on details of the construction work and the site condition. Several parameters influence the wave propagation in the concrete.

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Changes in High School Grading Standards in Mathematics, 1982-1992 by Mark Berends, Dan Koretz


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