Shoulder-length hair can sometimes feel like a bit of an in-between. It’s not long enough to swish dramatically nor short enough to feel like a statement. But with the right cut and finish, it becomes ...

Let Mr Pumpernickel get your class moving whilst learning about length and height and when to use different units for measuring. Download the lyric sheet so children can sing along. This song is a ...

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\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.