I encounter many students who struggle with the concept and practice of rounding. The general procedure taught in school is that if the last digit is 0-4 we round down, and if it is 5-9 we round up, but what does "rounding up" and "rounding down" … [Continue reading]

# Integer Addition Challenges

I have noticed that a number of relatively senior learners, in Grades 10-12, still struggle with types of integer addition. For example, consider the following three simple arithmetic integer sums: $latex 8-3$ $latex -3+8$ $latex … [Continue reading]

# What type of number?

The 2012 Annual National Assessments for Grade 9 include a question to select a particular type of number from a list. Each of these carries one mark only, and thus not much is expected from the learner except to circle their choice on their answer … [Continue reading]

# LaTeX : markup for mathematics

LaTeX is a language developed from the TeX computer typesetting language which was originally created by the computer scientists Donald Knuth in the 1970s. LaTeX is generally represented by the logo $latex \LaTeX$, which you will only see if your … [Continue reading]

# Learn Mental Mathematics while schools are closed.

Throughout the the world schools have been closed to prevent the spread of the COVID-19 virus. This closure will likely be for a long time and yet we still need to continue with our learning from our homes. I suggest that you take this time to build … [Continue reading]

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