To set up behaviours to display / be hidden on pupil and parent accounts, click on the three lines menu and select Behaviours from the list of options.
You will be presented with a list of behaviours in use at your school. Click on the behaviour you would like to restrict visibility to.
Scroll down the Edit behaviour popup and locate the Share with parents and Share with pupils settings. These settings are explained below:
Share with parents: If set to Yes, parents will see the behaviour within the their child's Activity feed. If set to No, parents will not see behaviours of this type.
Share with pupils: If set to Yes, pupils will see the behaviour within the Pupil Account's Activity feed. If set to No, pupils will not see behaviours of this type.