2D and 3D Shapes Game
Free 2D and 3D shapes game: decide if a shape is flat or solid, name it from four choices, and count sides and corners or faces, edges and vertices.
Three questions about a drawn shape. Flat or solid? shows a circle, cube, hexagon or cone and asks which it is. Name it gives four names from the same family (square, rectangle, rhombus, trapezoid; cube, rectangular prism, pyramid, prism). Count it asks how many sides or corners a flat shape has, and how many faces, edges and vertices a flat-faced solid has — never a sphere, cylinder or cone, which are counted differently in different classrooms. Every answer comes with the fact that decides it: “a triangular prism has 2 triangular faces and 3 rectangular faces, like a tent”.
A shape appears: is it flat (2D) or solid (3D)?
Not a test — nothing is saved after you leave.
Ready to sort, name and count shapes?
Flat or solid, the name, and how many sides, corners, faces, edges or vertices.
How to use the 2d and 3d shapes game
- 1Choose Flat or solid?, Name it, Count it, or Mixed, and a level.
- 2Look at the shape. In Flat or solid?, tap Flat (2D) or Solid (3D).
- 3In Name it, tap the right name out of four; in Count it, tap the right number.
- 4Read the feedback — it names the shape and the sides, corners, faces, edges or vertices — then tap Next.
When this is useful
Kindergarten and grade 1 shape units
Level 1 is the core set — circle, square, triangle, rectangle; cube, sphere, cylinder, cone — and asks flat or solid, the name, and sides and corners of the polygons (CCSS K.G.2–3, 1.G.1).
Faces, edges and vertices in grades 2–3
Levels 2 and 3 add the rectangular prism, pyramids and the triangular prism and ask how many faces, edges and vertices each has (2.G.1 attributes; the vocabulary used from grade 2 on).
Sorting 2D and 3D
The Flat or solid? mode is the sorting activity most shape units start with, with a one-line reason in every answer.
Shape vocabulary in four languages
The same game runs in Spanish, Brazilian Portuguese and Indonesian with the names each classroom uses — rombo and losango, balok and limas.
Projector rounds
One big shape and four large buttons — show it to the class and let students call the answer before you tap.
Examples to try
Flat or solid?, Level 1
A cone appears: Solid (3D). “Solid shapes take up space — you can hold them.”
Name it, Level 2
A six-sided shape with the choices pentagon, hexagon, octagon, trapezoid: hexagon — 6 straight sides and 6 corners.
Count it, Level 3
How many edges does a triangular prism have? 9. “A triangular prism has 5 faces, 9 edges and 6 vertices.”
Mixed
All three question kinds, with a different shape each time.
Tips for better results
Start with Flat or solid?
Sorting is the first idea; names and counts build on it.
Count on a real object
Hand out a tissue box or a die and count faces, edges and vertices with a finger while the game shows the same solid.
Say why, not just what
The feedback gives the deciding property — have students repeat it in their own words.
Print the matching worksheet
The Shapes Worksheet Generator prints name-the-shape and count-the-sides pages for the flat shapes with an answer key.
How the 2d and 3d shapes game works
The game draws from a catalogue of 18 shapes: 10 flat (circle, oval, square, rectangle, triangle, rhombus, trapezoid, pentagon, hexagon, octagon) and 8 solid (cube, rectangular prism, sphere, cylinder, cone, square pyramid, triangular prism, triangular pyramid). Level 1 uses the eight core shapes; Level 2 adds oval, rhombus, pentagon, hexagon, the rectangular prism and the square pyramid; Level 3 adds trapezoid, octagon, the triangular prism and the triangular pyramid.
Count questions are only ever asked of shapes with an agreed answer: sides and corners of polygons, and faces, edges and vertices of flat-faced solids. Spheres, cylinders and cones appear in the sorting and naming questions only.
A round is 8 questions; correct answers score 10 points plus a small streak bonus. Rounds are generated on your device and nothing is saved after you leave.
Private by design
- No account and no sign-up. Just open it and start.
- Everything runs on your device, so the shapes, names and numbers you tap during a round stays with you.
- Nothing you create is uploaded. No values, names, scores, or generated content are sent to our servers. If you're signed in, My Classeem's Recent Activity notes which tools you used — never what you did in them.
- We use Google Analytics for anonymous, aggregate measurement: page views and a few usage events, such as a worksheet being printed or a game round starting or finishing (with the mode played). It never receives what you enter — no answers, scores, names, or generated content.
Frequently asked questions
Is this 2D and 3D shapes game free?
Yes. No account, no limit on rounds, no ads. Nothing is saved after you leave the page.
What grades is it for?
Level 1 suits kindergarten and grade 1 (the core shapes, flat or solid, sides and corners); Level 2 grades 1–2 (more shapes and faces); Level 3 grades 2–3 (every shape, with edges and vertices).
Why doesn't it ask how many faces a cylinder has?
Because classrooms disagree: some count a curved surface as a face, some don't. The game only counts faces, edges and vertices on flat-faced solids — cube, rectangular prism, pyramids and the triangular prism — where the answer is the same everywhere.
Does it say rhombus or diamond?
Rhombus, the word used from grade 1 on; the feedback explains that it has four equal sides but no square corners. The Shapes Worksheet Generator uses the kindergarten word diamond for the same shape.
Can I play with a keyboard only?
Yes. The two sort buttons, the four names and the four numbers are ordinary buttons reachable with Tab.
Does it work on a phone?
Yes. The shape scales to the screen and every button is at least 44 pixels tall.
Does this use AI?
No. The shapes, their names and their counts are fixed facts drawn in your browser.
Is there a matching worksheet?
Yes — the Shapes Worksheet Generator prints the flat shapes to name or count, with an answer key.
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Always free · No account needed · Nothing you type leaves your device unless you choose to save it.