I completed an inquiry based lesson this year with senior infants that was similar to the waterproof lesson described in the module. Our ‘problem’ was that Teddy needed an umbrella to go outside in the rain. Children worked in groups to examine some different materials that might be appropriate. They predicted which ones would be waterproof and they constructed their umbrellas. We set up a “rain station” with water spray bottles and tested their umbrellas by placing their teddy bears under them and spraying water.