This document is a lesson plan on types of adjective clauses presented by Md. Abdul Kader. The lesson defines defining and non-defining adjective clauses and explains their punctuation rules. Key differences are that defining clauses do not use commas and provide essential information, while non-defining clauses use commas and provide extra non-essential information. The lesson also covers the use of who, whom, whose, which, that, when, where, and why in adjective clauses and includes examples, exercises, and an evaluation section.