This is the 978th most frequent Polish word.
szkołach
"Szkołach" means "schools" (locative plural form) in English.
Here, 'szkołach' is used to specify the location (schools) where the teachers hold lessons and interact with students.
Na lekcjach w szkołach nauczyciele starają się zainteresować uczniów.
During lessons in schools, teachers aim to engage the students.
Again, 'szkołach' denotes the place (high schools) associated with the students' activities and preparation processes.
W szkołach średnich uczniowie przygotowują się do egzaminów maturalnych.
In high schools, students prepare for graduation exams.
The word 'szkołach' is in the locative case and plural form, indicating locations (schools) where the action of learning takes place.