Hello. I am from Slovakia and on my high school we have Spanish as a 2nd language. I don't know why, but it's really hard for me and I have really bad grades. Please can somebody check if this is correct? I don't want get an F again

Essay must be in pretérito imperfecto and must contain bolded words.
Thanks guys!
La escuela de ayer.
Las escuelas de ayer son muy diferente. Para escribir se empleaban
tinteros. En cada clase estaba
crucifijo. Los
pupitres tenían espacio para la pluma. Para contar se usaba
ábaco. La mesa docente teníba
tarima. Las pizarras se borraban con
trapo. En las paredes se estaban los
carteles. Las pizarras se ponían sobre un
caballete. No me gusto la escuela de ayer.
English version about what I wanted to write:
School in the past.
Schools in the past were much different. Ink was used for writing. In every class there was crucifix (holy cross). Tables had place for pens. Calculator (I don't know that old word in english) was used for calculating. Teachers table had scaffold. Blackboards were cleaned with rag. On walls there were posters. Blackboards were hanged on stand. I don't like schools in the past.
Thanks!