Hola Yvette
Yes, you are right. The yo form of verb "corregir" (to correct) in the present is "corrijo".
The yo form of verb "coger" (to take) in the present is "cojo".
Did you see any typo in the lesson or questions?
I checked and there is no mistake, but let us know if you see one please.
Saludos
Inma