# 3rd Grade - Make Objects From Other Shapes

 Grade Level: 3rd Skill: Shapes and Geometry Topic: Make Objects from Other Shapes Goal: Identify common solid objects that are the components needed to make a more complex solid object. Skill Description: Measurement and Geometry: solid objects needed to make other solid objects The ability to see that some solid objects are made from other solid objects that have been joined together.

### Sample Problems

 (1) What is another name for a solid object? (three-dimensional object) (2) What happens to a solid object when small shapes are used to make it? (the new solid object is bigger than any one shape, but still rather small) (3) What happens to a solid object when larger shapes are used to make it? (the new solid object is larger) (4) How many pieces of paper are needed to make a cone? (1) (5) How many triangles does it take to make a square pyramid? [4 triangles and one square (two triangles taped together)]

### Online Resources

 (1) (2) (3) (4) (5)

### Extra Help Problems

 (1) I have a square bottom and four triangles for sides. What am I? (a square pyramid) (2) I have two triangular bases and three rectangular sides. What am I? (a triangular prism) (3) I have a pentagon for a base and five triangle sides. What am I? (a pentagonal pyramid) (4) I have six square sides, what am I? (a cube) (5) I have two hexagon bases and six rectangular sides. What am I? (a hexagonal prism) (6) I have two triangular bases and three rectangular sides. What am I? ( (7) I have five rectangles and two squares. What am I? (cuboid) (8) I am made of four triangles. What am I? (tetrahedron) (9) I have a rectangle and two circles. What am I? (cylinder) (10) I have eight triangles. What am I? (octahedron) (11) I am made of six diamonds. What am I? (rhomboid) (12) I am made of twelve pentagons. What am I? (dodecahedron) (13) I am made of five rectangles and two pentagons. What am I? (pentagonal prism) (14) I am made of five triangles and one pentagon. What am I? (pentagonal pyramid) (15) If you cut a rectangle. What shapes could you make without having any extra paper? (e.g., squares, triangles) (16) If you cut a diamond in half, what shapes do you get? (two triangles) (17) Make a drawing of a building using at least four different shapes. (18) Describe the difference between two-dimensional and three-dimensional objects. (19) What is the difference between the shape of a sugar ice-cream cone (the brown one) and a cake ice-cream cone (the light yellow one)? (20) Draw a house using at least five different shapes. (21) Draw a car using at least three different shapes. (22) Draw a sketch of an artistic drawing in any style using at least five different shapes. (23) Think about a circus. What are five different 3D shapes that you might see. (24) Why do you think buildings are different shapes? What are the positives and negatives of different shapes. (25) If you were an architect, what types of structures would you like to build? Why?