Counting and describing faces, edges, and vertices of 3D shapes.
Where your child meets this in real life: Describing 3D objects precisely, understanding packaging design
SEAGReady breaks describe 3d shape properties into 3 steps, taught in order so each skill builds on the last.
Count faces, edges, and vertices of shapes with all flat surfaces (cubes, cuboids, prisms, pyramids)
Describe flat faces, curved surfaces, curved edges, and vertices of cylinders, cones, and spheres using explicit terminology
Given an unambiguous description of flat faces, curved surfaces, edges, and vertices, identify the 3D shape
Three free sample questions from our describe 3d shape properties course. Every question comes with a full explanation, and hints that guide without giving the answer away.
Poppy is describing a cereal box for her homework. How many faces does a cuboid have?
Dylan is describing a tin of biscuits for his shape collection. How many flat faces and curved surfaces does a cylinder have?
Adam reads a clue card: 'I have 6 faces, 12 edges, and 8 vertices. All my faces are identical squares.' What is the most specific name for the shape?
This is the exact interactive worked example your child sees in SEAGReady. Step through it and watch the method build up.
A rectangular box is being described precisely.
How many faces, edges, and vertices does a cuboid have?
Faces are flat surfaces. Count the top, bottom, front, back, left and right.
6 faces
Step 1 of 3
A rectangular box is being described precisely.
How many faces, edges, and vertices does a cuboid have?
A cuboid has 6 faces, 12 edges, and 8 vertices.
The key insight: Face, edge, vertex - think flat surface, line where they meet, corner point!
Common mix-up: A cuboid has 6 faces, 6 edges, and 6 vertices. Confusing edges with faces - there are more edges (12) than faces (6) on a cuboid.
These are the misconceptions we see most often in describe 3d shape properties, including the ones our practice questions are specifically designed to catch.
Struggling with describe 3d shape properties? The real gap is often in one of these earlier topics.
SEAGReady finds the exact step where your child gets stuck, teaches it with worked examples like the one above, and brings it back for review so it sticks.
Free to start ยท no card needed