Learn English – tried the hands or tried the hand

prepositional-phrasesprepositions

What is wrong with this sentence?

I wrote –

I tried my hands again on my bicycle.

My teacher corrected to

I tried my hand again at riding my bicycle.

Confusion –

hands v.s hand – Why it is hand and not hands?

on my bicycle vs. at riding my bicycle?

Try my hand is an idiom meaning to try to do something. You can read more about it here:

Try my hands is not an idiomatic expression, and if you say this, it might be a little confusing to people.