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6669 resources How to Prove It: Contradiction and ContrapositiveArticle | Aug 09, 2019  | Mathematics | 0 Likes

In this episode of “How To Prove It”, we consider two similar sounding terms which have great significance in higher mathematics: contradiction and contrapositive. Can there be SSA congruence?Article | Aug 09, 2019  | Mathematics | 0 Likes

If two sides of a triangle have the same lengths as two sides of another triangle, and one angle of the first triangle has the same measure as one angle of the second Fun with Dot SheetsArticle | Aug 09, 2019  | Mathematics | 0 Likes

The ‘TearOut’ series is back, with perimeter and area. Pages 1 and 2 are a worksheet for students, while pages 3 and 4 give guidelines for the facilitator. 'CuRe' TRIPLETSArticle | Aug 09, 2019  | Mathematics | 0 Likes

O n observing the triple (25, 125, 225) in which 125 is a perfect cube, 25 and 225 are perfect squares, and the three numbers are in arithmetic progression (AP), I fel Understanding Learners' Thinking through an Analysis of ErrorsArticle | Aug 09, 2019  | Mathematics | 0 Likes

In this article, I have argued that it is important not to bunch all the students’ errors as “careless mistakes” or “over-generalisations”. A path to πArticle | Aug 09, 2019  | Mathematics | 0 Likes

Consider the following situation. A regular polygon of n sides is placed symmetrically inside another regular polygon of n sides i.e. Radii of In-circle and Ex-circles of a Right- Angled TriangleArticle | Aug 09, 2019  | Mathematics | 0 Likes

In this article, I provide a relation connecting the lengths of the tangents from the vertices of a right-angled triangle to its incircle and ex-circles, in terms of i