The groups module allows you to manage kids groups and provide a high level of duty of care.
Clicking on the Groups tile on the home page will take you to the select group page where you can choose the group you want to check people into.
Clicking on the cog in the top right corner of the Groups tile will open the Groups settings. Only users with admin permission can access Groups Settings.
For information on managing Groups settings see Groups Settings.
For information on managing user permissions see Manage users.