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