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Direct linkHarman, Charles – Tech Directions, 2011
At technical colleges and secondary-level tech schools, students enrolled in basic electronics labs who have learned about diodes that do rectification are used to seeing power diodes like the 1N4001. When the students are introduced to low-power zener diodes and signal diodes, component identification gets more complex. If the small zeners are…
Descriptors: Technical Institutes, Electronic Equipment, Spectroscopy, Program Descriptions
Seybold, C. A.; Harms, D. S.; Grossman, R. B. – Journal of Natural Resources and Life Sciences Education, 2009
Rupture resistance is a measure of the strength of a soil to withstand an applied stress or resist deformation. In soil survey, during routine soil descriptions, rupture resistance is described for each horizon or layer in the soil profile. The lower portion of the rupture resistance classes are assigned based on rupture between thumb and…
Descriptors: Item Response Theory, Evaluation Methods, Soil Science, Measurement Techniques
Download full textSheppard, Ian – Australian Mathematics Teacher, 2009
Engaging students with real-world activities can be effective in supporting the learning of mathematics, "whenever possible, real-world situations will provide a context for both introducing and applying geometric topics" (NCTM 1989). Tool making is a way to bring real-world mathematics into the classroom and using the tool is a way of…
Descriptors: Geometric Concepts, Geometry, Mathematics Activities, Mathematics Instruction
