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3D shapes teaches students how to draw them using isometric and elevation drawings. Students progress onto constructing nets of a range of solids. This is a key topic before moving onto finding the volume and surface area of cubes and prisms in Year 10 Term 4 for the Higher GCSE course.

**Prerequisite Knowledge**

- draw 2-D shapes and make 3-D shapes using modelling materials; recognise 3-D shapes in different orientations and describe them
- compare and classify geometric shapes, including quadrilaterals and triangles, based on their properties and sizes

**Success Criteria**

- identify properties of the faces, surfaces, edges and vertices of: cubes, cuboids, prisms, cylinders, pyramids, cones and spheres
- construct and interpret plans and elevations of 3D shapes.

**Key Concepts**

- Students need to understand the geometrical difference between a prism and pyramid.
- Horizontal lines are not drawn on isometric paper.
- Students need to sketch a solid from elevation drawings and vice-a-versa

**Common Misconceptions**

- Students often get confused which elevation to draw and how to include hidden detail.
- Some students find it difficult to draw 3D shapes on isometric paper. Encourage the use of multilink cubes to aid drawings.

July 6, 2019

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June 30, 2019

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June 24, 2019

When learning how to write 3-part ratios students need to understand how ratios can be made equivalent. The start of the lesson reminds students by asking which of six ratios is the odd one out. This is presented to the class as they come into the lesson. Writing Equivalent Ratios A few students immediately go […]