Meet the swan who never stops knocking in this wild Bedtime Math story!
When we’re showering, we don’t really notice how much water we’re wasting. Well, one woman noticed and invented a clever shower curtain to encourage people to take shorter showers. Read on to see how this invention gently pokes and prods its users (literally!) to lessen the amount of time they spend singing in the shower – and see how the gallons of water saved can add up quickly!