To instruct or admonish someone by criticizing or reprimanding them harshly.

फटकार कर सिखाना

English Usage: She believes it's effective to teach by scolding her students when they make mistakes.

Hindi Usage: वह मानती है कि जब उसके छात्र गलती करते हैं तो उन्हें डांट-डांट कर सिखाना प्रभावी होता है।