Author note — to cover

Count faces, edges and vertices of cubes, cuboids, prisms, cylinders, pyramids, cones and spheres — G12's full list — distinguishing flat faces from curved surfaces and prisms from pyramids. Euler's formula is enrichment, not required. Nets and elevations are sibling pages; volumes live on Mensuration. Both tiers. (G12)

• Fluency — direct questions on faces, edges and vertices, limited to this lesson's stated scope (4 questions).
• Application — use the same skill in unfamiliar or contextual questions without introducing a later method (4 questions).
• Check — questions built around the exclusions and likely misconceptions named in the lesson brief (4 questions).