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Geometric Figures and Solids

CAPS Senior Phase Mathematics (South Africa): Grade 8–9

8 ready-made resources for teaching Geometric Figures and Solids, written for CAPS Senior Phase Mathematics. Slides, worksheets, mark schemes, homework, an assessment and retrieval quizzes, all with SEN-friendly scaffolding built in as standard. Below is what the topic requires and where learners usually go wrong, free to read whether or not you sign up.

Independently rechecked. These files were written to the specification from our own topic maps, then put through a separate recheck pass from the one that wrote them, which found and fixed real errors. A subject teacher has not signed them off individually, so give them your usual read before you teach from them.

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What is in this bundle

Assessment mark schemeWord, editable
End-of-topic assessmentWord, editable
HomeworkWord, editable
Retrieval-practice quizzesWord, editable
SlidesPowerPoint, editable
Starter & exit ticketWord, editable
Worksheet (Grade 8 & 9)Word, editable
Worksheet mark schemeWord, editable

Grade 8

Recognise, visualise and name geometric figures and solids in real-world, natural and designed contexts, including polyhedra and quadrilaterals (carried forward from Grade 7), and now also the five platonic solids specifically (tetrahedron, cube, octahedron, dodecahedron, icosahedron).
Use nets to make physical models of geometric solids.

Grade 9, in addition

Recognise, visualise and name geometric figures and solids using more precise classification language: regular and irregular polygons, and regular and irregular polyhedra, rather than the general "polyhedra/quadrilaterals" naming used at Grade 7-8.
Recognise and name spheres and cylinders specifically, alongside the polyhedra already covered.

Where learners go wrong

Confusing a 2D net with the 3D solid it folds into, particularly for less familiar solids like platonic solids beyond the cube.
Using "regular" to mean "common" or "normal" rather than its precise mathematical meaning (all sides and angles equal).
Misclassifying a solid with curved faces (a cylinder or sphere) as a polyhedron, which by definition has only flat polygonal faces.

How it gets asked in the exam

"Name the solid shown", "Identify whether the polygon is regular or irregular", "Draw a net for ...", "Use the net to construct a model of ...".

Key vocabulary

Polyhedron, quadrilateral, platonic solid, tetrahedron, octahedron, dodecahedron, icosahedron, regular polygon, irregular polygon, sphere, cylinder, net.

Assumed prior knowledge

Basic 2D shape names and properties (Grade 7 content).
Confident use of the vocabulary "faces, vertices and edges" for describing solids (Grade 7 content, feeding into the Congruence/Transformations topic's properties work).

How Speca scaffolds this topic

Physical or manipulable nets (paper folding, or a digital fold/unfold animation) give a concrete, dual-coded link between the 2D net and the 3D solid, rather than relying on visualisation alone.
A labelled reference gallery of the five platonic solids, kept visually consistent throughout the topic, supports the naming and recognition skill introduced at Grade 8.
Keep "regular" and "irregular" polygon examples directly side by side when first introduced at Grade 9, so the visual contrast reinforces the definition.

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