Abhishek is able to remember all the formulas of trigonometry orally, but when he tries to solve questions he commits mistakes. Best remedial strategy you as his teacher would adopt is
1
Give him practice test after school hours, continuously for one month.
2
Give him assignment of 10 problems every day.
3
A worksheet would be provided to him with partially solved problems to complete the missing gaps.
4
Ask him to solve problems on blackboard.