Question

Some say that texting on a cell phone is a bad thing for students focus, but their is a simple thing we can do is by having the teachers go around the classroom to see if students are texting. how can i fix this run-on sentence

Answer 1

Texting on a cell phone could be distracting for students, but this problem could be solved by teachers going around the classroom. Sorry, I know that's not great, but it's the best I can because it's so long.

Answer 2

Note that you need the possessive ("students' focus") and the correct form of "there." Unless it was indicated in previous writing, it is unclear who "we" is.

"To avoid the distraction of texting in the classroom, teachers can monitor students for this activity."