As a branch of big data learning analysis

learner persona can realize the screening and integration of data resources

which is conducive to the realization of precision teaching. First of all

this study refers to the general process of instructional design

and constructs a target-oriented precision teaching intervention design framework based on learner persona. Then

guided by Bloom’s educational cognitive goal classification theory and taking junior high school English grammar teaching as an example

a cognition-oriented behavioral goal classification system

its data index and a precise result goal classification system are developed. Then

a target-oriented learner persona model is constructed to draw a persona based on learners’ interest characteristics

behavior characteristics and knowledge level

accurately distinguishing students and diagnosing teaching problems. Then

based on the results of learner persona

from the perspectives of goals

behaviors and results

a series of precision teaching intervention strategies such as target precision stratification

personalized resource push

risk supervision and early warning

peer dialogue feedback and reflective evaluation are proposed. Finally

the intervention strategy is applied in teaching

and the results show that: the precision teaching intervention strategy based on learner persona has significant effects on the improvement of behavioral goals

outcome goals and satisfaction.