The apostrophe is a punctuation mark that is often incorrectly-used. This short, but effective, presentation addresses that fact. One way to use them is when showing possession in writing. Learners are coached on when to use possessive...

This is an information-intense presentation for any science class you might be teaching that will study ionising radiation. The material is specific to cancer diagnosis and treatment, and one of the forty-two slides also touches on using...

The prefixes il-, im-, in-, ir- are the subject of a PowerPoint that shows how these affixes appear in words and then defines these words. The presentation concludes with a practice exercises.