Flashcards · K to 2nd grade

Shape flashcards

12 flat shapes and 9 solid shapes, each named, with sides, faces and vertices. 21 cards.

All 21 cards

• Circle · 2D shapeno sides, no corners
• Oval · 2D shapeno sides, no corners
• Triangle · 2D shape3 sides, 3 vertices
• Square · 2D shape4 equal sides, 4 right angles
• Rectangle · 2D shape4 sides, 4 right angles
• Rhombus · 2D shape4 equal sides
• Parallelogram · 2D shape2 pairs of parallel sides
• Trapezoid · 2D shape1 pair of parallel sides
• Pentagon · 2D shape5 sides, 5 vertices
• Hexagon · 2D shape6 sides, 6 vertices
• Octagon · 2D shape8 sides, 8 vertices
• Star · 2D shape10 sides, 10 vertices
• Cube · 3D shape6 faces, 12 edges, 8 vertices
• Rectangular prism · 3D shape6 faces, 12 edges, 8 vertices
• Sphere · 3D shapeone curved surface
• Cylinder · 3D shape2 flat faces, 1 curved surface
• Cone · 3D shape1 flat face, 1 curved surface
• Square pyramid · 3D shape5 faces, 8 edges, 5 vertices
• Triangular prism · 3D shape5 faces, 9 edges, 6 vertices
• Triangular pyramid · 3D shape4 faces, 6 edges, 4 vertices
• Hexagonal prism · 3D shape8 faces, 18 edges, 12 vertices

How to practice

1. Start with eight to ten cards, not the whole set.
2. Show a card. If the answer comes quickly, it goes on the “know it” pile; if not, say it together and put it on the “not yet” pile.
3. Next time, start with the “not yet” pile and add two new cards.
4. Five minutes a day is enough. Stop while it is still fun.

More alphabet, numbers and shapes

• Alphabet flashcardsPre-K and K · 26 cards · 3 pages
• Number flashcards 0 to 20Pre-K and K · 21 cards · 2 pages

Common questions

All flashcardsMake your own flashcards2D and 3D shapes worksheets