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WHAT IS INTRO TO 3D SHAPES?
2D shapes are flat. 3D shapes are solid. Some examples of 3D shapes are cubes, spheres, and cones.
To better understand intro to 3D Shapes…
WHAT IS INTRO TO 3D SHAPES?.
2D shapes are flat. 3D shapes are solid. Some examples of 3D shapes are cubes, spheres, and cones.
To better understand intro to 3D Shapes…
LET’S BREAK IT DOWN!
Properties of flat shapes
A circle has no sides and no corners. A triangle has three sides and three corners. A rectangle has four sides and four square corners. A square is a rectangle where all of the sides are the same length.
Properties of flat shapes A circle has no sides and no corners. A triangle has three sides and three corners. A rectangle has four sides and four square corners. A square is a rectangle where all of the sides are the same length.
Balls are spheres.
A sphere is a solid shape with no sides and no corners. A baseball is a sphere. A basketball is a sphere.
Balls are spheres. A sphere is a solid shape with no sides and no corners. A baseball is a sphere. A basketball is a sphere.
Boxes are rectangular prisms.
You see a box. All the faces of the box are shaped like rectangles. This box is a 3D shape called a rectangular prism. A cube has 6 faces that are squares.
Boxes are rectangular prisms. You see a box. All the faces of the box are shaped like rectangles. This box is a 3D shape called a rectangular prism. A cube has 6 faces that are squares.
A bucket is a cylinder.
You have a bucket of ice cream. The bucket has a circle at the top and at the bottom. The sides of the bucket are curved. This is a cylinder. A can of soda is also a cylinder.
A bucket is a cylinder. You have a bucket of ice cream. The bucket has a circle at the top and at the bottom. The sides of the bucket are curved. This is a cylinder. A can of soda is also a cylinder.
Ice cream cones are cones.
We scoop the ice-cream into an ice cream cone. A cone is a 3D shape that has a circle on one end. The other end is pointy. The orange markers on roads are called traffic cones. This is because they are shaped like cones.
Ice cream cones are cones. We scoop the ice-cream into an ice cream cone. A cone is a 3D shape that has a circle on one end. The other end is pointy. The orange markers on roads are called traffic cones. This is because they are shaped like cones.
INTRO TO 3D SHAPES VOCABULARY
2D shapes
Shapes that are flat.
Circle
A 2D shape with no sides and no corners.
Triangle
A 2D shape with three sides.
Rectangle
A 2D shape with four sides and four square corners.
Square
A 2D shape with four sides that are all the same length and four square corners.
3D shapes
Shapes that are solid, not flat.
A 3D shape with no sides and no corners.
A 3D shape with six square faces.
The flat side of a 3D shape.
A 3D shape with six faces made of rectangles.
A 3D shape with circles on both ends.
A 3D shape with a circle on one end, and a point on the other end.
INTRO TO 3D SHAPES DISCUSSION QUESTIONS
What are examples of spheres?
Some examples of spheres are basket balls, soccer balls, bowling balls, oranges etc. Use classroom examples too.
If you rotate a 3D shape or change its size, does it become a different shape?
No, if we rotate a shape, it is still the same shape. If we change the size of the shape, it is still the same shape.
What shape has a circle on one side and is pointy on the other side?
A cone has a circle on one side and is pointy on the other side.