It emphasizes the purpose of going somewhere, which is to learn something new.
Here's a breakdown:
* On: We (informal, plural)
* y: there (refers to a previously mentioned place)
* va: goes (present tense of aller, to go)
* pour: to, for
* apprendre: to learn
The phrase can be used in various situations, such as:
* Going to school: "On y va pour apprendre les mathématiques!" (Let's go to learn math!)
* Starting a new hobby: "On y va pour apprendre à jouer du piano!" (We're going to learn how to play the piano!)
* Traveling to a new place: "On y va pour apprendre la culture locale!" (Let's go to learn about the local culture!)