Thoughts on Teaching Week 7 tutorial
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Thoughts on Sect. 7.4
Students commonly forget the square root.
Furthermore, the calculators may use scientific notation to display the results from some calculations (e.g. \(2.2894\times 10^{-2}\) or \(2.2894^{-2}\) as it displays on some calculators); many students will have no idea what's going on.