This is the 2048th most frequent Portuguese word.
correção
Correction.
In this sentence, 'correção' refers to the act of amending or checking for errors in the math exercises.
Preciso fazer a correção dos exercícios de matemática.
I need to correct the math exercises.
Here, 'correção' signifies the comprehensive process of reviewing and providing feedback on the test.
A professora fez uma correção detalhada na prova.
The teacher made a detailed correction on the test.
In this usage, 'correção' means the process of rectifying or learning from mistakes.