2-Dimensional Shapes are FLAT like a PANCAKE!
Rectangle
- 4 sides
- 4 corners
- Straight sides
Square
- 4 sides
- 4 corners
- Straight sides
- A "special" kind of rectangle--all 4 sides are equal length!
Triangle
- 3 sides
- 3 corners
- Straight sides
Rhombus- 4 sides
- 4 corners
- Straight sides
- Looks like a square with the corners pulled tight.
- You may know it as a "diamond"
Trapezoid- 4 sides
- 4 corners
- Straight sides
- Looks like a triangle with the top cut off
- Has diagonal lines
Hexagon- 6 sides
- 6 corners
- Straight sides
Circle- Zero sides
- Zero corners
- A curved line that is closed
Oval- Zero sides
- Zero corners
- A curved line that is closed
- Looks like an egg
3-Dimensional Shapes have heighth, width and depth (in kindergarten talk--they "come out at you, like a 3-D movie). They are NOT flat like a pancake!
Cube
- 6 square faces
- Will slide, but not roll
Sphere
- Round like a ball
- No faces or corners
- Will roll
Cone
- Circle base
- point at the top
- Will roll around in a circle
Pyramid
- Square or triangle base
- Triangle faces
- point at the top
- Will slide, but not roll
Cylinder
- 2 circle bases
- Can roll and slide
Rectangular Prism
- 6 rectangular (can be square) faces
- Can slide, but not roll
- Prisms can be rectangular, square, triangular, even hexagonal!
We are learning the following TEKS when we learn about shapes:
K.8 Geometry and spatial reasoning. The student uses attributes to determine how objects are alike and different.
K.8A Describe and identify an object by its attributes using informal language.
K.8B Compare two objects based on their attributes.
K.8C Sort a variety of objects including two- and three-dimensional geometric figures according to their attributes and describe how the objects are sorted.
K.9 Geometry and spatial reasoning.
The student recognizes attributes of two- and three-dimensional geometric figures.
K.9A Describe and compare the attributes of real-life objects such as balls, boxes, cans and cones or models of three-dimensional geometric figures.
K.9B: Recognize shapes in real-life three-dimensional geometric figures or models of three-dimensional geometric figures.
K.9C Describe, identify, and compare circles, triangles, rectangles and squares (a special type of rectangle).
