We recently purchase some Crayola Dry-Erase Crayons for our classroom and they have been a hit! They work and look just like Crayons you use on paper. They look great on the whiteboard and you can really jazz up your lesson with all the different colors. Clean up takes a little more than a dry-erase marker. I typically use 1 wet wipe to clean up but these take two or three for full clean up. I love these and highly recommend them to any teacher!