This document lists common classroom items in English and provides examples of using singular and plural forms of "this/that" and "these/those" to ask questions and make statements about the items. It includes a list of classroom objects like pencils, books, desks, chairs, boards, teachers, and trash cans. Below the list are examples of questions and statements using singular "this/that" to refer to a single item and plural "these/those" to refer to multiple items.