different geometry approaches
You can explore a geometry problem
in different ways
There’s more than one way to investigate a geometry problem,
and the choice of which one to go for is often about how your
own brain works rather than one being “better.”
1
Use your BRAIN
Your brain is amazing. Even
before you started to learn about
geometry, your brain could
already recognize symmetry
and special angles. But don’t
just think, use your imagination,
too. What if this shape was really
BIG? What if you turned it
upside down?
IMAGINE what
would happen if.…
2
Use a PENCIL and PAPER
Sketches can help you think, but an
accurate drawing can also show you
whether something is possible or impossible.
Add a ruler for
more accurate
drawings.
Gr
id pap
er giv
es y
ou
a head s
tart.
Think about the
RULES in your
GEOMETRY
TOOLBOX.
Use LOGIC to PROVE
something works or
doesn’t work.
116 Chapter 3