Triangle areas 0 Overview Connecting to the Curriculum Marking Student Responses Working with Students Further Resources This task is about area of shapes in unit squares. Question 1Change answer What is the area of each triangle? Each square is 1 cm2. What is the area of each triangle? Each square is 1 cm2. a) Area of triangle A = cm2. b) Area of triangle B = cm2. c) Area of triangle C = cm2. d) Area of triangle D = cm2. Level: 3 Curriculum info: Maths, Geometry and Measurement, Measurement Keywords: area, unit squares Description of task: Students calculate the area of four different triangle shapes on a grid. Learning Progression FrameworksThis resource can provide evidence of learning associated with Measurement sense, set 5 within the Mathematics Learning Progressions Frameworks.Read more about the Learning Progressions Frameworks. Answers/responses: Y6 (11/1997) a) 2 cm2 moderate b) 1 cm2 moderate c) 2 cm2 moderate d) 1.5 cm2 difficult Diagnostic and formative information: Common error Likely reason a) b) c) d) 7, 6 5 6, 7 5, 4 (or close to these values) Confuses area and perimeter. b), d) 2 Rounds to nearest whole cm2. How many Xs cover Y Area of shapes III Total area Area and perimeter Setting up tables Working out area Area of four shapes Area of shapes II Unit square area
