What was that movie with the school teacher who's father owned a cattle ranch.?

I remember the teacher's father owned a cattle ranch in texas. The
teacher had a wife but the pay for being a teacher was very low, so
they had to eat fish and such. I remember his father came to visit and
bought steaks. I think I remember the school where he taught at was
not very good, kinda dangerous.

Sorry its hard to remember and I only saw part of it. It would be
awesome if somone knew. It was a very old film like 1960's ?

thanks