Counting Years

An introduction to the concept of counting years by centuries. In my experience this is something that confuses many students. It seems odd that 2016 should be in the 21st century. This activity includes a background reading explaining the history of AD and BC, and why CE and BCE are sometimes used. It provides plenty of practice for students to become confident in assigning years to particular sentences, and also provides a lookup sheet which can be used for introduction and modification.