16 A teacher encourages the children in her class to explain the physical properties of the object around them in their own words. What is the most appropriate objective of the teacher to do such an activity with her students? 1. It is useful which introduces a child to the shapes 2. It is a very interesting activity which can be performed in the free time for revisiting the concept of shapes 3. Children enjoy explaining the objects in their own language like they enjoy playing dumb charades 4. It makes the children observe the physical properties of an object informally which deepens their understanding about shapes