The Equals Sign

About how old do you think the equals sign is?

  1. Around the time of the Boston Tea Party - 1770s
  2. Around the time Shakespeare died - 1610s
  3. Around the time of Copernicus showed that the Earth actually revolves around the Sun - mid 1500s
  4. Around the time Sankore University and Mosque are founded at Timbuktu - 1450

Make your wild guess before opening the next section!

The Short History of the Equals Sign

What the Equals Sign Doesn't Mean

So be careful how you teach it!

First and second grade teachers - Only look at this if you are tempted to write equations for Tugboat