Transcript Shape Up: A Geometry Project

Shaping Up!
A Geometry Project
Grade 2 West
Ian Forsyth School
Dartmouth, Nova Scotia
Reflection and Symmetry
• If you draw an imaginary line down the
center of whatever you're looking at,
both sides would be a mirror image of
each other. This would also show
symmetry
Try these activities on symmetry Math: Symmetry
Reflection
• You can FLIP a shape and show it’s
reflection. Make a shape. Highlight the
shape. Click ‘Draw’. Choose FLIP. Your
shape will FLIP and you will see its
reflection.
Try here for lots of activities with shapes BBC
Schools Online - MegaShapes - Homepage
Sorting Shapes
• My sorting rule is:
• Shapes with curves and shapes without
curves.
CURVES
NO CURVES
If you want to get some shapes to work with, click
here Basic Shape Patterns
Patterns
• This is a 2-D Pattern:
What would be next?
• This
is a 3-D Pattern
What would be next?
Make your own pattern block shape ON LINE!
Pattern Blocks: Exploring Fractions with Shapes
Parallel Lines
The lines of the skis are parallel
The lines of the oars are not
The legs of the tables are parallel
The sides of the hanger are not
The edges of the paper are parallel
The edges of the paper airplane are not
Right Angles
• Right angles are square corners
This is a right angle
This is a right angle
No matter which way
you look at it, it is still
a right angle
This is a right angle
This is a right angle
Parallelogram
• A parallelogram has parallel sides
Try some Tangrams!
http://www.tangrams.ca/
Prisms
• A prism can be named by its base
A prism with a triangular base would be
called a triangular prism
A prism with a square base would be
called a square prism
A prism with a rectangular base would
be called a rectangular prism
Do you need help with shapes? Go here:
Geometry Main Page
Polygons
• A closed figure with 3 or more line
segments is a polygon
These are polygons
These are not polygons
Can you name these shapes? Test yourself! Click here
Faces and Surfaces
• Some 3-D shapes have flat surfaces called
FACES
• Some 3-D shapes have curved surfaces
called SURFACES
Nets
• Nets are 2-D plans with which to make 3-D
shapes. Here is a net that will make a cube.
If you cut it out and fold it up,
you will have a cube
Try some nets! Nets
Get to know shapes:
http://illuminations.nctm.org/imath/35/GeometricSolids/GeoSolids5.html