Notes #1 (1.1 & 1.2) 1-1 Points, Lines, and Planes 1-2 Linear Measure and Precision Standard...

Notes #1 (1.1 & 1.2)1-1 Points, Lines, and Planes

1-2 Linear Measure and Precision

Standard 1.0: Students demonstrate understanding by identifying and giving examples of undefined terms.

Objective: Identify and model points, lines, and planesIdentify collinear and coplanar points and intersecting lines and planes in space.Identify segments and compute with measures

Definitions

Point: has no size. Think “a dot”

Space: is the set of all points

Undefined Terms: are terms that can only be explained using examples and descriptions.

Line: a series of points that extends without end in two directions.

Collinear points Non-collinear points

A

BAB reads line AB reads line t

t

Points thatlay on a line

Points thatdon’t lay ona line.

Plane: is a flat surface that is two dimensional, it also extends without end.

Coplanar: Points and lines in the same plane

P

plane P

A •B •

C •

plane ABC

•G

•H•J

•K

•M•L

DO NOW…..CW #1 pg. 9 (1-9)

Line segment (segment): is a line with endpoints.

EndpointsA B

Name the segment AB or BA

Point M is between points P and Q if and only if P, Q and M are collinear

Segment Addition Segment Subtraction

PM + MQ = PQ QR = MR – MQ

DO NOW…..CW #1 pg. 17 (7-10)

Classwork #1Pg. 9 (1 - 9)

Pg. 17 (7-10)Homework #1Pg. 9 (10-26)

Pg. 18 (25-33)odd