Estimation Mysteries

There were cows and roosters in a cow paddock. Sarah counted the legs they could see. There were 22. Sam{...}

  https://www.youtube.com/watch?v=QQdiRTHWhwI Here are the instructions as to how to play this game. You will need a deck of cards.{...}

  Show children a piece of string. You have to be at least half this height to be allowed to{...}