Kids should always check the control code (number or letter) at the physical control and compare it with the control code marked somewhere on their map (it could be beside the control circle or in a separate table or control description sheet somewhere on the map). This provides confirmation if they're at the control they should be at.
The following links point to resources that have been collected and are relevant to this skill (?).
Description of a BingO variation (score-o style) of fun orienteering at Orienteering.ca.
Description of / instructions for a star relay exercise at Orienteering.ca where teams have to find one control at a time and hand their SI stick or punch card to their partner between controls.
"Run a course consisting of a lot of short legs with many changes in direction."