Grammar fix

school supplies

materials

things like pens, notebooks, and other items students need for school work.

collocationB1common

Hear it in context

Notice where the phrase sounds natural.

Before the new term started, I bought all my school supplies, including notebooks and highlighters.education
In my opinion, schools should provide basic school supplies for students who cannot afford them.IELTS speaking

Pattern: school supplies (noun, plural)

WrongI bought a school supply.

RightI bought some school supplies.

Usually plural 'supplies' — it's a collective term.

Patternschool supplies (noun, plural)

Choose the version that sounds natural in speech.

Stiff We must procure the requisite educational materials.

Natural We need to buy some school supplies.

'School supplies' is plain; 'procure educational materials' is bureaucratic.

Words that usually travel with it.

school supplies + verb
buy school suppliesstationerya pack of suppliesback-to-school supplies

Not the same as 'stationery,' which usually means paper, pens, and envelopes for writing letters.