Table of Contents
In the Beginning...
Who am I?
Who are you?
Why DO we care?
Because it’s a useful way to think.
About theorems
Theorem 1.1.1
Extend all the lines of the triangle
Notice that the line p, when regarded as an angle,
has measure 180°.
Theorem 1.1.2
Background facts to know:
The square of an even number is even.
The proof:
Square both sides of the equation resulting in p2 =
2q2. This means that p is an even number. So p = 2r and
Every step we took below the “suppose”
sentence is logical and true.
Chapter 1, section1, notebook assignment and hints
prob 8 use the net to find this -- one way is to
search on “Eratosthenes”.
The Sketchpad Classroom
Problems
Problem 4, page 6
b.) Rewrite the quadratic formula with
and do the algebra to verify the form in the text
c.) note that the translation matches the pattern
of the altered quadratic formula in part b. |