These are the original Science of Weather teaching notes in digital format, also available in print on amazon. They complement the Science of Weather Student Workbook. (Note that the worksheets are not included in this package.) While the original paper version of the teaching notes was published as 5 separate volumes, this version contains all notes for all 5 series in a single 900-page document. (If you intend to teach only a particular theme or topic in the workbook, you might consider downlo