Results: The percentage of students with correct knowledge about the purpose of handwashing is to reduce harmful microorganisms present on dirty hands is 99.0%, the percentage of students with correct knowledge about routine hand washing time is 28.2%, the percentage of students with correct knowledge about the time to wash hands is before and after taking care of a sick person is 96.1%, and 98.1% of students know that when coughing if you don't have a handkerchief, you should use the inside of your elbow to cover it, not your hand.