Bell Ringer:

None.

TODAY'S OBECTIVES

• Students draw cubic shapes using dotted paper as guide.
• Student identify parallel lines in drawings
• Students make "nets" on 1 cm graph paper to fold and make a cube (A) and to form shapes made from multiple cubes: B, C, D (see page for figures)
• Students determine SA and V for each shape they built.

CLASS LESSON

Draw rectangular prisms & nets & make shapes from cube

1. Students draw shapes A, and B following teacher's modeling on white board.  
2. Students draw shape B from 3 different perspectives (ie. a) front, top, right visible; b) front, top, left visible; c) front, bottom right visible) independently on their own dotted paper.
3. Point out parallel lines found in cubes (note that diagonals give perspective but are not drawn to length)
4. Student make "nets" for shapes A-D and fold to form 3-D shapes.  Collect shapes and mark students for the shapes they have completed successfully.  [Note: each shape must be built with a single piece of paper using the 1 cm grid-no tape or glue, and all sides must be covered and NO extra flaps or sides must be present.  In other words, "net" must represent the entire surface area.]

ASSIGNMENT

1. Students draw at least six unique nets for shape B (they should not be mirror images of each other nor have rotational symmetry).
2. Calculate the SA and V in cm of shapes B-D.