After four weeks, they will all take an exam in maths, science and Mandarin.

在四个星期后，他们将会接受数学，科学和普通话测试。

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Mr Andrews announced reforms after international assessments for reading, maths and science showed Welsh teenagers were falling behind.

BBC: Leighton Andrews outlines reforms for schools standards

And students looking for places on sought-after courses such as medicine and veterinary science see advanced maths as a way to stand out.

ECONOMIST: The way to save minority subjects