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Arcavi, Abraham; And Others – For the Learning of Mathematics, 1987
Described is the development and implementation of a course on the history of irrational numbers for inservice mathematics teachers in Israel. Some of the materials included in the course are discussed. (RH)
Descriptors: College Mathematics, Course Objectives, Higher Education, Mathematics
Peer reviewed Peer reviewed
Arcavi, Abraham; Bruckheimer, Maxim – College Mathematics Journal, 1991
Presents the algorithm to approximate square roots as reproduced from the 1579 edition of an algebra book by Rafael Bombelli. The sequence of activities illustrates that the process of understanding an original source of mathematics, first at the algorithmic level and then with respect to its mathematical validity in modern terms, can be an…
Descriptors: Algebra, Algorithms, College Mathematics, Content Area Reading
Peer reviewed Peer reviewed
Nachmias, Rafi; Arcavi, Abraham – Journal of Computers in Mathematics and Science Teaching, 1990
A nonconventional graphical way to represent functions (the Parallel Axes Representation) is discussed. A computerized environment designed to support the exploration of the representation of linear functions is described. The didactical potential of this representation is illustrated. (CW)
Descriptors: College Mathematics, Computer Graphics, Computer Uses in Education, Educational Technology