Multiple “correct” answers are integrated into the learning system to allow individualized learning experiences in which {TAIL ~ navigation} through the system is at {HEAD ~ a pace} controlled by the learner 
Multiple “ correct ” answers are integrated into the learning system to allow individualized learning experiences in which { TAIL ~ navigation } through the system is at { HEAD ~ a pace } controlled by the learner
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH