Shortly after I’ve graduated with Mathematics and Electrical (and Computer) Engineering degrees, I realized a few supposedly difficult topics in Hong Kong’s Mathematics and Physics (Electric Circuits) curriculum was taught in unnecessarily painful ways.

Here’s an article I’ve written to show that it is less work to teach secondary (high) school students a few easy-to-learn university math topics first than teaching them dumb and clumsy derivations/approaches to avoid the pre-requisites: HKDSE EE Tips

Here are the outline of the article

- Complex numbers with Euler Formula
- Trigonometric identities can be derived effortlessly using complex number than tricky geometric proofs
- Inverting matrices using Gaussian elimination instead of messing with cofactors and determinants
- Proper concepts of circuit analysis and shortcuts
- Solving AC circuits in a breeze with complex numbers instead of remembering stupid rules like ELI and ICE rules and messy trigonometric identities.

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