The *Blackboards in Porn* blog takes a look at the blackboards found in classroom porn sets and examines whether what's written on them is correct or not.

The site is purely intended for humour and it is safe for work.

Mathematics - year 8 level

This sets out to be a good illustration of the function more commonly expressed as y=x

^{2}. (Why the teacher has chosen A and S is unclear; these are sometimes used in lower case form as acceleration and distance respectively, but the relationship between them would not then be physically correct.) The important points (S=0, S=1, two points where S<1 and two points where S>1) have been well chosen to illustrate this function, though it would have been useful to have included some more points where S<0 to show what happens when squaring a negative number.

This is Why Your Used Bookstore Clerk Hates You |

A Breakup Letter to Facebook |

Frank Chimero on the Shame in Louis C.K.'s Comedy |

Don Draper Says "What?" |

When Apple's Siri Kills, the Horror Movie |