Using what was learned from the thesaurus, select the search strategy that best uses a correct combination of Subject and regular keyword searching:

Points: $2$

AND Any field: electronic learning

AND Any field: gamification

AND Any field: $($achieve$*$ OR perform$*)$

Subject $($Descriptors$)$ field: Games in Education

AND Any field: individualized instruction

AND Any field: achievement OR performance

Subject $($Descriptors$)$ field: Gamification OR $$Game Based Learning$$

AND Any field: math$*$

AND Any field: mobile OR smartphone OR tablets

AND Subject $($Descriptors$)$ field: $$Student Motivation$$ OR $$Learner Engagement$$

Subject $($Descriptors$)$ field: Gamification AND Game Based Learning

OR Subject $($Descriptors$)$ field: Learner Engagement AND Student Motivation

OR Any field: achieve$*$ AND perform$*$