Right.
Funny how Boruto ditches Konohamaru and goes solo training with Sasuke and he makes a full version. They really made Konohamaru wack in this movie.
Sasuke is a better teacher, even though he only taught him some shuriken jutsu ... it isn't really that questionable. He made Boruto's skill set more unique. Both has Raiton, so he can teach him more Lightning techniques, and he tried to instill weaponry control since he lacked in that area.
Overall Sasuke would teach him to hone his skills that he currently knows, teach him a variety of elemental techniques from his own skill set, he would improve his reaction time and base speed through fighting with him in close quarters, and place that with fighting a Sharingan user who can predict movements and cast Genjutsu.
If Boruto and Sasuke went to train by themselves together, he would of created an ultimate shinobi for the new generation. Boruto right now got to where he did without a teacher; Shadow clones, and three elemental natures.
He learned Rasengan from Konohamaru
He taught himself how to apply an elemental nature to his Rasengan unconsciously.
Then Sasuke taught him shuriken jutsu.
We don't know how he learned Gentle Fist, could of been from training or just watching his mother/sister, or the Hyuuga clan.
