CONCEPTS AND SKILLS TO BE ACHIEVED By the end of the lesson, learners should know and be able to: Use appropriate formulae and conversions between SI units, to solve problems and calculate perimeter and area of polygons: Squares Rhombi Rectangles Parallelograms RESOURCES DBE workbook(page42-43 & p.206-214), Sasol-Inzalo (p. 251-265), ruler, pencil, eraser, calculators, DVD(Grade 9 Term 2 Disc 1-GDE 04 06 2014) PRIOR KNOWLEDGE The properties of quadrilaterals The difference between the perimeter and the area of a figure The use of formulae to calculate perimeters and areas of squares, rectangles, triangles and circles (From Grade 8). To solve equations by inspection. COMPONENTS TIME TASKS/ACTIVITIES CAPS INTRODUCTION AND 5 min Make 24 with all 4 numbers on the card. You can add, subtract, multiply or MENTAL MATHS divide. You have to use all four numbers. Each number may be used only once. For example: if the numbers are 2, 2, 6, 8: You could make 24 by explaining (8-2) x (6-2) = 24. REVIEW AND This homework is a builder for the next lesson so that learners can CORRECTION OF research at home if they need to. HOMEWORK Fill in the following table for area and perimeter of different shapes:
CONCEPTS AND SKILLS TO BE ACHIEVED By the end of the lesson, learners should know and be able to: Use appropriate formulae and conversions between SI units, to solve problems and calculate perimeter and area of polygons: Squares Rhombi Rectangles Parallelograms RESOURCES DBE workbook(page42-43 & p.206-214), Sasol-Inzalo (p. 251-265), ruler, pencil, eraser, calculators, DVD(Grade 9 Term 2 Disc 1-GDE 04 06 2014) PRIOR KNOWLEDGE The properties of quadrilaterals The difference between the perimeter and the area of a figure The use of formulae to calculate perimeters and areas of squares, rectangles, triangles and circles (From Grade 8). To solve equations by inspection. COMPONENTS TIME TASKS/ACTIVITIES CAPS INTRODUCTION AND MENTAL MATHS 5 min Make 24 with all 4 numbers on the card. You can add, subtract, multiply or divide. You have to use all four numbers. Each number may be used only once. For example: if the numbers are 2, 2, 6, 8: You could make 24 by explaining (8-2) x (6-2) = 24. REVIEW AND CORRECTION OF HOMEWORK This homework is a builder for the next lesson so that learners can research at home if they need to. Fill in the following table for area and perimeter of different shapes: