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Download full textSousa, Ana; Rodrigues, Pedro; Maia-Lima, Cláudia; Pinto, Alexandre; Barbot, António – International Journal of Curriculum and Instruction, 2020
The excessive exposure to ultraviolet radiation, natural or artificial, is a public health concern. For this reason, it is important that, from an early age, children and teenagers gain awareness of this problem. By not being visible to the human eye, ultraviolet radiation is an abstract concept and difficult to understand, although its short-term…
Descriptors: Radiation, Grade 9, Foreign Countries, Skill Development
Direct linkAndrews, D. G. H. – Physics Education, 2009
A computer model of the decay of a radioactive series, written in Visual Basic in Excel[TM], is presented. The model is based on the random selection of cells in an array. The results compare well with the theoretical equations. The model is a useful tool in teaching this aspect of radioactivity. (Contains 4 figures.)
Descriptors: Radiation, Structural Equation Models, Programming, Mathematical Models
