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Direct linkHarding, Ansie; Engelbrecht, Johann – International Journal of Mathematical Education in Science and Technology, 2009
Visualizing complex roots of a quadratic equation has been a quest since the inception of the Argand plane in the 1800s. Many algebraic and numerical methods exist for calculating complex roots of an equation, but few visual methods exist. Following on from papers by Harding and Engelbrecht (A. Harding and J. Engelbrecht, "Sibling curves and…
Descriptors: Mathematics Activities, Mathematics Instruction, Equations (Mathematics), Problem Solving
Engelbrecht, Johann; Harding, Ansie – Journal of Computers in Mathematics and Science Teaching, 2004
Online assessment in mathematics is becoming more prominent as mathematics and the internet become more compatible. This paper is based on a case study of a web-based calculus course in which a combination of paper and online assessment is used for assessing various activities. The paper first investigates what student assessment preferences are…
Descriptors: Internet, Calculus, Web Based Instruction, Computer Assisted Testing
