SUMMARY
This paper focuses on the issues of run-on and stringy sentences. They are thought to be significant ill formed structures formed by writers of English language. Initially, they are defined with examples. Later, various correct forms are presented. In order to see the ways of correcting run-on and stringy sentences in actual class environment, a micro-teaching lesson is given. In this micro-teaching lesson, there are different parts like warm-up and motivation, review of the previous material, present the new items and give examples, give the rule, do exercises, make a summery and give an assignment. The paper ends with conclusion including a final wrap-up. This way, both writers of English language are aimed to be informed on run-on and stringy sentences and these structures are tried to be prevented in writing, and teachers are expected to help their learners on this matter.