1. By Miss O.

2.  The branch of mathematics concerned with the properties of and relationships between points, lines, planes, and figures.

3.  The earliest records of geometry can be traced to ancient Egypt and the Indus Valley from around 3000 BC.

4.  Euclid, a Greek mathematician, wrote The Elements of Geometry.  He presented geometry in a practical form known as Euclidean geometry Euclid’s was not the first important early texts on geometry.

5.  An exact location in space; named by a capital letter

6.  A straight path that extends forever in opposite directions; named by two points on the line  RS R S

7.  A part of a line with two endpoints; named by the two endpoints  PZ Z P Q

8.  A flat surface that extends without end in all directions

9.  A part of a line with one endpoint that extends forever in one direction; named by the endpoint first followed by another point on the ray

10.  Twp rays joined at a common endpoint called the vertex; named by the vertex or the vertex and a point on each ray

11.  The point on an angle or polygon where two lines or rays meet; named with a capital letter Vertex

12.  90 degrees  Square corner  Little box

13.  Less than 90 degrees

14.  More than 90 degrees

15.  180 degrees  Straight line http://www.youtube.com/watch?v=yptZt9hwrzU&safety_mode=tr ue&persist_safety_mode=1&safe=active

16.  Build all 4 angles with your bodies on the carpet. Each group will have 4 students in it.  Miss O. will come around to take a photo of each angle for the website!

17.  Play “Simon Says” with each hand motion that represents a geometric term we learned today!

18.  Lines that pass through the same point

19.  Lines that never intersect

20.  Lines that form right angles (90 degree angles)  All perpendicular lines are also intersecting lines!

33.  In the world around you, where do you see geometric figures in real life every day?  Make a list with your partner of at least 3 ways!