Counting the faces, edges and corners (vertices) of cubes, prisms and pyramids, telling solids that roll from ones that don't, and naming a solid from clues.
A face is a flat side, an edge is where two faces meet, a corner is where edges meet. Dashed lines are the edges at the back: count them too.
facea flat side of a solid
edgea line where two faces meet
corner (vertex)a point where edges meet
curved surfacea side that isn't flat, so the solid can roll
Watch for: Counting only the faces you can see, not the ones at the back. Counting an edge twice where two faces share it. Calling a cone's point an edge.
At home: Find a cereal box and a can. Count the faces, edges and corners of each, and see which one rolls.
Sample sheet and answer key
Freddie's Frog Pond
Grade 2 · Faces, edges and corners · 2.8B
NameDate
Freddie the frog lives in a busy pond full of bugs, lily pads and friends. Solve each problem to help Freddie out!
Count them
Dashed lines are edges at the back. A corner (vertex) is where edges meet.
FacesEdgesCorners
FacesEdgesCorners
FacesEdgesCorners
Will it roll?
Circle every solid with a curved surface: it can roll.
Which solid am I?
Circle the name that fits every clue.
I have 2 triangle faces and 3 rectangle faces.triangular prismspherecylinder
I have no flat faces, no edges and no corners.rectangular prismtriangular prismsphere
I have 1 square face and 4 triangle faces that meet at a point.triangular prismpyramidtriangular pyramid
Grade 2 · Sheet
Freddie's Frog Pond
Grade 2 · Faces, edges and corners · 2.8B
Answer key
Freddie the frog lives in a busy pond full of bugs, lily pads and friends. Solve each problem to help Freddie out!
Count them
Dashed lines are edges at the back. A corner (vertex) is where edges meet.
Faces6Edges12Corners8
Faces6Edges12Corners8
Faces4Edges6Corners4
Will it roll?
Circle every solid with a curved surface: it can roll.
Which solid am I?
Circle the name that fits every clue.
I have 2 triangle faces and 3 rectangle faces.triangular prismspherecylinder
I have no flat faces, no edges and no corners.rectangular prismtriangular prismsphere
I have 1 square face and 4 triangle faces that meet at a point.triangular prismpyramidtriangular pyramid
Answer key
Something wrong with this sheet? A wrong answer, a hard-to-read picture? Report it
New problems every time, three levels (gentle, core and stretch), themes to pick from, a second page if you want one. Each sheet comes with an answer key and a one-page guide for grown-ups.
