Imagine a harmless collection, game counter or made-up signal. What should your total mean? Choose a rule you would like to test.
In the Studio, choose SET total, fill a start number and add SHOW. Run. Try ADD and change its number. Does the total do what you meant?
When ready, put ADD-current-input inside FOR EACH. Give it your own invented records. IF lets a record choose what happens. Choose, change, run and inspect your trace. You can stop, start over, ask for access help or take another sitting. Work is not saved when you close.
Paper, pointing, signing, speaking, usual AAC, tactile choices and a scribe can help show your thinking. Tell the adult which choices are yours and who entered the blocks. One useful choice is worth discussing; there is no speed or finishing race. You can choose an interest or enjoy the programme puzzle itself.