Download African Mathematics: From Bones to Computers by Mamokgethi Setati, Abdul Karim Bangura PDF

By Mamokgethi Setati, Abdul Karim Bangura

This is often the 1st finished textual content on African arithmetic that may be used to deal with a number of the frustrating concerns during this region. those matters comprise attitudes, curriculum improvement, academic swap, educational fulfillment, standardized and different exams, functionality components, scholar features, cross-cultural variations and reviews, literacy, local audio system, social type and transformations, equivalent schooling, educating tools, wisdom point, academic directions and rules, transitional faculties, comparative schooling, different topics similar to physics and social stories, surveys, expertise, academic examine, instructor schooling and skills, educational criteria, instructor effectiveness, lesson plans and modules, instructor features, directions, application effectiveness, software review, African tradition, African background, Black reviews, classification actions, academic video games, quantity structures, cognitive skill, international impression, and basic options. What unifies the chapters during this publication can look particularly banal, yet many mathematical insights are so noticeable and so basic that they're tricky to take in, have fun with, and convey with clean readability. a number of the extra easy insights are remoted by way of bills of investigators who've earned their contemporaries' recognize.

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Extra resources for African Mathematics: From Bones to Computers

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Lumpkin also discusses the fact that the Egyptian units of measurement suggest knowledge of the Pythagorean Theorem in the special case of an isosceles right triangle. The double remen equals the diagonal of a square whose side equals one cubit. Changing the units of measurement from cubits to double remens would double the area of a figure. Finally, in his article, “Egyptian Fractions” (1981), Charles Rees uses the Egyptian preference for dealing with unit fractions, with the exception of the case of 2/3, as a starting point for certain problems in Number Theory.

For the former topic, scholars explore symmetrical wall decoration in Lesotho and South Africa; house strip patterns from Guinea, Mozambique, Senegal, and Uganda; and finite geometrical designs from the Lower Congo region. Exploration of a hexagonal basket weaving technique from Cameroon to Kenya, Congo to Madagascar and Mozambique, leads to connections between the underlying geometry and chemical models of recently discovered carbon molecules. Pentagrams are discovered in knots, and alternative ways are developed for rectangle constructions and for the determination of areas of circles and volumes of spatial figures, including a twisted decahedron.

In most language varieties, the formation of the numbers in any place value is by addition of the digits from one to nine to the appropriate word for the multiple of ten (Zaslavsky 1973/1999:43). e. 16, 17, 18 and 19 can be formed by deducting 4, 3, 2 and 1, respectively, from 20, and similarly for those of the higher place values. ” An “uncountably” large number is referred to as pughu (Zaslavsky 1973/1999:43). The Yoruba of southwest Nigeria have a unique system based on 20. It illustrates an unusual subtractive principle still in effect to this day.

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