Key Concepts
2-dimensional shapes:
Shapes with two dimensions that is width and height, and are closed and classified according to how many sides the shape has
Essential 2D-shape vocabulary: flat shape, rectangle, side, corner
Shapes with two dimensions that is width and height, and are closed and classified according to how many sides the shape has
Essential 2D-shape vocabulary: flat shape, rectangle, side, corner
Number of sides
1 3 4 5 6 8 10 |
Shape name
circle/oval triangle (equilateral triangle - a triangle with sides of the same length and angles of equal sizes) quadrilateral (included in this group are square, rectangle and rhombus) pentagon hexagon octagon decagon |
3-dimensional objects:
Shapes with three dimensions are classified according to how many faces the shape has
Essential 3D-shape vocabulary:
solid shape, hollow shape, cube, cuboid, pyramid, cylinder
Prism - a solid that has 2 equal and parallel bases joined by rectangular faces
Edge - the intersection of two surfaces; particular, the straight line where two faces of a 3-dimentional object meet
Face - one of the plane surface of a 3-dimentional object
Vertex - a point at which 3 or more edge come together
Shapes with three dimensions are classified according to how many faces the shape has
Essential 3D-shape vocabulary:
solid shape, hollow shape, cube, cuboid, pyramid, cylinder
Prism - a solid that has 2 equal and parallel bases joined by rectangular faces
Edge - the intersection of two surfaces; particular, the straight line where two faces of a 3-dimentional object meet
Face - one of the plane surface of a 3-dimentional object
Vertex - a point at which 3 or more edge come together
Number of faces
1 3 4 5 6 |
Shape name
Sphere/Ovoid Trihedron Tetrahedron Pentahedron Hexahedron |
Related concepts (Spatial Vocabulary):
Location/position words: on, off, on top of, over, under, in, out, into, out of, top, bottom, above, below, in front of, in back of, behind, beside,
by, next to, between, same/different side, upside down
Movement words: up, down, forward, backward, around, through, to, from, toward, away from, sideways, across, back and forth, straight/
curved path
Distance words: near, far, close to, far from, shortest/longest path
Transformation words: turn, flip, slide
Location/position words: on, off, on top of, over, under, in, out, into, out of, top, bottom, above, below, in front of, in back of, behind, beside,
by, next to, between, same/different side, upside down
Movement words: up, down, forward, backward, around, through, to, from, toward, away from, sideways, across, back and forth, straight/
curved path
Distance words: near, far, close to, far from, shortest/longest path
Transformation words: turn, flip, slide
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