WEEK 7TOPIC: Plane shapeSUBTOPIC: Symmetrical plane shape.OBJECTIVES: At the end of the lesson, pupils should be able to:1. State the meaning of symmetry2. Identify Symmetrical plane shape3. Locate the line of symmetry of plane figures at school and home.4. Identify the right angle, acute and obtuse angle in a plane shape.5. Distinguish between horizontal and vertical.CONTENTsymmetry means that one shape becomes exactly like another when you move it in some way: turn, flip or slide. For two objects to be symmetrical, they must be the same size and shape, with one object having a different orientation from the first.