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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

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Parabolas: Connection between Algebraic and Geometrical Representations
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Shriki, Atara – Australian Senior Mathematics Journal, 2011
A parabola is an interesting curve. What makes it interesting at the secondary school level is the fact that this curve is presented in both its contexts: algebraic and geometric. Being one of Apollonius' conic sections, the parabola is basically a geometric entity. It is, however, typically known for its algebraic characteristics, in particular…
Descriptors: Geometric Concepts, Geometry, Algebra, Secondary Education
On Vieta's Formulas and the Determination of a Set of Positive Integers by Their Sum and Product
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Valahas, Theodoros; Boukas, Andreas – Australian Senior Mathematics Journal, 2011
In Years 9 and 10 of secondary schooling students are typically introduced to quadratic expressions and functions and related modelling, algebra, and graphing. This includes work on the expansion and factorisation of quadratic expressions (typically with integer values of coefficients), graphing quadratic functions, finding the roots of quadratic…
Descriptors: Algebra, French, Mathematics Instruction, Mathematics Activities