Multiplication facts are difficult to teach. Therefore many researchers have put a great deal of effort into finding multiplication strategies. Sherin and Fuson (2005) provided a good survey paper on the multiplication strategies research area. Kolpas (2002), Rendtorff (1908), Dabell (2001), Musser (1966) and Markarian (2009) proposed the finger…

Contextual mathematics is an area of mathematics teaching and learning through which researchers and educators believe that mathematics is better taught, and learned, if connected to real-life situations and problems. It is also very helpful if it makes sense in the students' world. Thus, the author decided to start a project by creating a blog,…

A discussion of the relation between traffic density, speed and flow, used as an illustration of the ideas of functions and mathematical models. (MM)

Notes on jeep trips and card stacks; some work with Multibase Arithmetic Blocks, the complex roots of unity, and a divisibility test. (MM)

Develops two-dimensional descriptions of degenerate transformations using elementary matrix algebra. (RS)

A dialogue between a student and a teacher is presented. The topic is the absolute value function. The discussion ranges from elementary algebraic properties to deeper properties of the function. (SD)

An inconsistency between American and British accounting methods led the author to this problem whose solution involves linear equations and geometric series. (SD)

Geometric series are developed from accounting problems involving percent interest. (SD)