"improve their mastery" is grammatically correct and can be used in written English.
It means to enhance or develop one's skills or expertise. Example: "The students were given extra practice assignments to improve their mastery of the subject before the final exam."
The intension was to create a host of new innovative features and functions that allow the user to improve their mastery of cooking.
The government has shown a commitment to further improve their mastery in other areas, including diagnostics and treatment of common illnesses through improved training and supervision.
In general, students felt they were given a greater number of opportunities to be actively engaged in their own learning and progressively improve their mastery over the course content.
Both cohorts felt they had greatly improved their mastery of the 60 competences by the end of the master's programme.
By the end of the master's programme, both cohorts of students considered that they had greatly improved their mastery of the 60 competences (p < 0.001).
Each week children participate in a variety of activities aimed at improving their mastery of 12 fundamental movement skills (run, jump, leap, hop, slide, gallop, strike, roll, kick, throw, catch, bounce).
Founded in 2013, CommonLit also focuses its outreach on schools with the greatest need, but least in financial resources to help students improve their reading mastery.
Outcomes for peer tutors were not specifically investigated in this paper, but previous research has consistently shown that peer tutors improve their content mastery as well as their perceptions of the respective field (Otero et al., 2010; University of Colorado Learning Assistant Program, 2011).
These programs are where seniors can learn adaptive strategies or acquire adaptive devices to address their unmet needs, and which may in turn improve their sense of mastery.
The universities have programs that advise parents, programs to steer successful community college students into the state's senior colleges, and programs for elementary and secondary school teachers, to improve their teaching and subject mastery.
If only it were that easy but such praise does a disservice to the recipient because they aren't motivated to improve their performance or to gain mastery over things they find challenging.
