Test the spoons
Put a metal spoon, a plastic spoon and a wooden spoon in a cup of warm water and have kids feel the handles after a minute. The metal one warms up fastest! Then they sort materials into conductors and insulators. Feeling it first makes the vocabulary stick.
Why it works: going from real objects to pictures to symbols is a core recommendation of the U.S. Department of Education's elementary math guide.
Try it withConductors and Insulators Heat Energy WorksheetWorksheetsOpen it →














