The lesson files listed below are PDF documents. Cick on any file name in the list to read the file on-line or to print it.
If there is an 'a' in the filename after the lesson number and before the '.pdf', the lesson includes answers.
To return to this page after viewing or printing the document --
if your browser opens the document in the same window, click your browser's Back button or
if your browser opens the document in a new tab or window, close the tab or window.