Heather from Hojo's Teaching Adventures was so kind to recently spotlight my math fact bottle caps idea and even better yet, she is doing her own giveaway of addition math fact plastic lids. Yay for green teachers!! I hope you will take a quick second to participate in her giveaway (it ends this Wednesday, June 6th, 2012). All you have to do is follow one of her social sites - super easy! Click the picture for a chance to be a lean, green, teaching machine next year with this recycling math game!