Archive | September, 2013

22 September 2013

Debugging a Hot Wires circuit

Jude was given an electronics set for her birthday, called Hot Wires. You connect components together with poppers to make circuits, and it's generally very good. One of the experiments is called 'traffic lights', and is supposed to be a circuit where you choose whether a green light or a red light shines, by pressing […]

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05 September 2013

A fruitful exchange with the State Examination Commission

While looking through some past and sample papers to help with some volunteer maths tutoring I do, I came across what I was fairly convinced were errors in a question in a sample paper written by the State Examination Commission. What followed was a very positive exchange of correspondence with the examiner, and the end […]

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