The children worked in teams to plan and build their barrier or wall with the equipment that was provided . The children discussed with their teacher and teaching assistnats how they could make the test fair and discussed which factors to change and which factors to keep the same. After the children had made their designs the class went into the hall to test their ideas. At the end of the day the whole school went into the hall to test out all the designs and find the one that worked the best. The children really enjoyed working together as teams and came up with some great ideas