On ScholarPack you can set up an Adhoc Register that is an extra column labeled as you need it, that teachers can use to record this information.
To do this go to Admin > Config > Adhoc Register > Click Add New and simply, choose a name for the column, tick which days you would like it to show and click Insert to save.
This is now available on the registers for your teacher to mark as Yes. This can be reported on by going to Reporting > Reports > Attendance >Adhoc Register.