Geometry Collection in the Classroom by  Susan Johnsey
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Examples for each column to complete below.
Section (see number in book) or Lesson number (online)
Type definition, postulate, property, theorem, corollary,..... or undefined for point, line and plane (see bottom page 5).
Name or number Segment addition postulate or postulate 2.
Section and type

Name (word) and/or its number AND the STATEMENT

Diagram

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definition

Equidistant  equally distant or same distance apart


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undefined
see bottom pg 5

POINT it is a place or position on your paper or screen. A point does not really have a length or width. It is so small we can not see it for it has no dimensions.


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definition

Space  set of all points. Where can you imagine a point? There is space.


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undefined
see bottom pg 5

PLANE  It extends in 2 dimensions forever. It has no edges. It is like a table top that is without bound, goes on forever or a wall or floor that continue forever. It is totally covered in POINTS; we label a few of them with capital letters. We must label at least 3 points if we use points to name the plane.
We can label the plane with one letter; see the M.

There are 4 planes here that intersect. Pretend all planes continue forever. The line RP is vertical and continues forever; it intersects plane M at point P in this diagram.

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definition

COPLANAR POINTS All points that are in the same plane.

Points X and Z and P in the diagram above are coplanar. Points Y and Q and X are coplanar too. What other point is coplanar with Y, Q and X?

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undefined
see bottom pg 5

LINE It continues forever in two directions; it is "straight". It is covered in points also. WE should label at least 2 of the points.

<..>
A K







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Postulate

Segment Addition Postulate or postulate 2 I prefer the SAP rather than post. 2.
The sum of the parts of a line segment create the whole segment.
AJ+ JC = AC or AC+ CK=AK or AJ+JC+CK= AK

....
A J C K




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Postulate

Postulate 6
Through any two points there is exactly one line.

<..>
A K
I can draw only 1 line through these 2 points.
