Could someone please explain why it's 'constitutes' instead of 'constitute' in this sentence.

'The course aims to give students and understanding of what constitutes core ways of conceptualising globalization and globality'

Also, what it be 'the core ways are' or 'the core ways is'?

It it talking about a single course. That's the reason, "constitutes" has been used.
Is it ok to say.

"the thing that constitutes..."

"the things that constitute..."

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Thanks for your reply

What confuses me is the part that speaks of 'core aims', which I presume to be plural. It's that that makes me think it should be 'constitute'.

Oh, the confusion!