You only show one field for marking children "present" on don't show any field for recording a child's schedule. You'll need both items in order to create your report. You'll also need at least two additional tables with which to track attendance and schedules.
Your Children table should have at least:
ChildID (auto-entered serial number)
Your Schedule table: (1 record for each day of the week that a child is scheduled).
DayName (text, use with drop down list to select day of week by name)
Your Attendance table:
AttDate (date field)
You can one portal on your Children layout to record the child's schedule and another to record their attendance or you can record attendance on a separate layout based on your attendance table.
Now a summary report can be created, based on the Attendance table, to list children present on a given day (or the week, or other time period...) and you can group your children by Group and whether or not they were scheduled for that day.
Here's a link to a simple tutorial on setting up summary reports that you may find useful:
Creating Filemaker Pro summary reports--Tutorial
1) Create the following calculation fields:
DayofWeek=DayName(Get(CurrentDate)) *make this global
These two fields tell you how many days a kids is scheduled to come and what is the current day of the week.
2) Create this custom function
*For simplicity, make sure Days field is Monday, Tuesday, etc instead of Mo, Tue
Since you are using a checkbox, the Days field is really a ¶ delimited list of which days a child comes. This scripts looks through that list and if one of those days matches the current date it will return 1 if not 0
3) Create the calculation field, Scheduled=If(CheckSchedule(numDays;Days)=1;"Scheduled";"Not Scheduled")
This field uses the custom function to see if a child is scheduled to come today or not.
4) Create a new layout. Go to Layouts>Part Setup and create a subsummary report for Group and a subsummary report by Scheduled. In the First field in the body part.
5) Sort by Group then Scheduled
Let me know if you have any questions, I will elaborate or include pictures.
Thank you mmccarty and Phil for your advice.
I'm sorry I have been ill for some time, so read your replies today.
Will dig in it, because I'm not only new to this forum but also to Filemaker Pro so have to learn a lot.