CREATING
2 DIMENSIONAL NETS FOR 3 DIMENSIONAL SOLIDS
(Recognizing the links between 2D and 3D)
NCTM
Principles and Standards  Ref Page 169 (Geometry  Grades 3 to
5)
MATERIALS
REQUIRED PER STUDENT OR GROUP
10 Squares of same color
20 Triangles
4 Triangle Frames
Plus Connectors
PART
ONE  Nets of Cubes
1. Make a 'T' shaped net with 6 squares, then fold it to create
a cube.
2.
See how many different nets you can make for a cube  Fig 1
PART
TWO  Nets of Cuboids (Rectangular Boxes)
3. Make a 'T' shape with 10 squares (double row), then fold it to
create a cuboid.
4.
See how many different nets you can make for the cuboid  Fig
2
PART
THREE  Nets of Pyramids
5. Make a large triangle with 16 triangles, and then fold it into
a pyramid.
6.
See how many different nets you can make for the triangular pyramid
 Fig 3
PART
FOUR  Some other nets
7. Make a net with 8 triangles. Find out what solid 3D shape it
transforms to  Fig 4
8.
How many faces does it have ? This one is called an octahedron (octa
means 8).
9.
Is it a regular octahedron ? Why ?
10.
Discover what other nets you can make from this shape.
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