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- Year 10•
- Foundation
Checking and securing understanding of area for standard shapes
I can calculate the area of rectangles, triangles, parallelograms and trapeziums efficiently.
- Year 10•
- Foundation
Checking and securing understanding of area for standard shapes
I can calculate the area of rectangles, triangles, parallelograms and trapeziums efficiently.
Lesson details
Key learning points
- The formula for the area of a rectangle is bh
- The formula for the area of a parallelogram is bh
- The formula for the area of a triangle is bh ÷ 2
- The formula for the area of a trapezium is ((a+b)h) ÷ 2
Keywords
Area - The area is the size of the surface and states the number of unit squares needed to completely cover that surface.
Trapezium - A trapezium is a quadrilateral with exactly one pair of parallel opposite sides. The plural of trapezium can be referred to as trapezia or trapeziums.
Common misconception
Pupils might find the area of parallelograms and triangles by multiplying the length of two adjacent edges which are not perpendicular.
Calculating the area of a shape involves multiplying two perpendicular lengths. These may not be horizontal and vertical in the shape's initial orientation.
To help you plan your year 10 maths lesson on: Checking and securing understanding of area for standard shapes, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 maths lesson on: Checking and securing understanding of area for standard shapes, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 4 maths lessons from the 2D and 3D shape: compound shapes unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.The __________ is the size of the surface and states the number of unit squares needed to completely cover that surface.
Q2.Which are units of area?
Q3.The area of a rectangle with base 5 cm and a height of 3 cm is cm².
Q4.The perimeter of a rectangle with base 5 cm and a height of 3 cm is cm.
Q5.The perimeter of the rectangle is m.

Q6.The area of the rectangle is m².

Assessment exit quiz
6 Questions
Q1.A is a quadrilateral with exactly one pair of parallel opposite sides.
Q2.Match each shape to the formula for its area.
parallelogram -
$$A = bh$$
trapezium -
$$A = \frac{1}{2} \times (a + b)h$$
triangle -
$$A = \frac{1}{2} bh$$
Q3.The area of the parallelogram is cm².

Q4.Which calculation would find the area of this triangle?

Q5.The area of the shape is units².

Q6.PQR is a right-angled triangle. Work out the area of the triangle..
