You should check your school email account throughout the school day to check if you have any messages or work sent through, check this at least at the start of the day and after each break. To access your school email address go to Google https://www.google.co.uk and log into Google with your school email address (username@cgss.co e.g. smitj999@cgss.co) and the password you use to login to the computers at school. Then click the mail link at the top of Google homepage. Alternatively use this link to go straight into Google mail