Everything you need to save time and teach Benjamin Franklin! Printables PLUS PowerPoint slides to go along with student sheets. $ #benjaminfranklin #presidentsday - Other Famous American Units are available
Times have Changed. Students try to determine if a penny is old or new by the sound it makes when dropped. Pennies made before 1982 used copper as their primary metal. Pennies after 1982 use mostly Zinc. I like this lab because it uses sound as the primary sense. Standard deviation, variance, and sampling techniques can all be learned.