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Here is an exmaple of how students use powerpoint and slideshare to combine their class research project into a comprehensive report for comment by the peers and fans :-). I do wonder how they got everybody to reveal their weights...

In this unit students develop a variety of mathematical skills including: * Data collection and organisation, using a questionnaire about grocery stores, brand names and cell-phones.* Graphical representation of the data collected using bar graphs and pie charts.* Understanding cumulative data, as well as developing and interpreting frequency tables. * Analysis of data to answer questions, using graphs and tables.* Reading and interpreting fi gures, in the context of a newspaper report concerning skills development. * Calculating the various measures of central tendency and percentages in the context of workers and wages.* Working with range and spread of data.* Identifying distortion and manipulation of information.* Identifying patterns and trends,  through working with scatterplots and broken line graphs.* Making simple predictions and comparisons.

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"South Africa is significantly underperforming in education, particularly mathematics teaching and learning. Fundamental reforms are needed in the public sector. Business leaders need to incorporate an understanding of private education and other market experiments and schooling innovations in their overall perspective and priorities for intervention and reform.   Read more in a new CDE Insight, MATHEMATICS OUTCOMES IN SOUTH AFRICAN SCHOOLS: What are the facts? What should be done? "

"Mathematics and science at school are vital to higher education, skilled jobs, and the national economy. For this reason, CDE has taken a sustained interest in the performance of the South African schooling system in these subjects. This paper summarises the results of four statistical analyses of Senior Certificate and National Senior Certificate results since 1998. Conducted by Professor Charles Simkins, they provide important new insights into the mathematics and science performance of South African schools, and identify key policy issues arising from the research."