Trodat\'s Education stamper displaying the phrase \'Show your working out\' is perfect for marking pupils jotters. Helping you the teacher motivate and reward pupils as well as making light work of repetitive tasks. Minimise your marking time and leave a clear visible instructionmessage to your student. Created using a selfinking stamp this educational stamper will allow you to mark 1000\'s of jotters printing clearly each time. Replacement pads are also available for this stamp under the referen...