Geometry Advise from former students: “Take notes and actually use them to help on other things” Today: 1.1 Instruction Vocab Intro Problem Practice

Assignment Yesterday: Let’s Move/Treasure Hunt Policy Signature Student Info Sheet Website Word Get Supplies Advise from former students: “Take notes and actually use them to help on other things”

1.1 Points, Lines, and Planes

Objective: 1. Understand and use the basic defined and undefined terms of Geometry. 2. Sketch relationships in Geometry. Vocabulary: Undefined term, point, line, plane, collinear, coplanar, 1.1 Points, Lines, and Planes

Make a chart in your notes that takes up about a whole page. It should have seven rows. The boxes should be big enough to write a sentence or draw a picture in.

Point - a location 1.1 Points, Lines, and Planes First row: LinePlane Definition - made up of points - extends forever - flat surface Real Life Ex: - extends forever Real Life Ex:

Point - a location 1.1 Points, Lines, and Planes Second Row: LinePlane Definition - made up of points - extends forever - flat surface Real Life Ex: - extends forever Real Life Ex: Drawn asa dot a line with arrows at each end a slanted four sided figure

Point 1.1 Points, Lines, and Planes Third Row: LinePlane Drawn asa dot a line with arrows at each end a slanted four sided figure Picture P A B Z Y X M l W

Point 1.1 Points, Lines, and Planes Fourth and Fifth Rows: LinePlane Picture P A B Z Y X M Named by Written as a capital letter The letters of two points on the line with a line over them OR a lower case cursive The letters of three points on the plane not all on the same lineOR a capital cursive line point P line line l l plane WXY W plane WYZ plane M

Point 1.1 Points, Lines, and Planes Sixth and Seventh Rows: LinePlane Facts has neither shape nor size there is exactly one line through any two points there is exactly one plane through any three points Vocab Known as an undefined term. Points of the same line: collinear Points on the same plane: coplanar

Naming Collinear and Coplanar Points: Name three points that are collinear. – L, N, O or M, N, P Name a point that are not coplanar. –P–P Name a line not contained by plane LMO. – Line MN, NP or MP ● ● ● ● ● P L N O M

Vocabulary line segment: a part of a line that consists of two endpoints and all the points in between those endpoints – also called a segment. A B endpoints Line : extends forever

Vocabulary ray: part of a line that consists of a point, called the initial point, and all points on a line that extend in one direction from the initial point. A B initial point

Vocabulary ray: part of a line that consists of a point, called the initial point, and all points on a line that extend in one direction from the initial point. A B initial point

Assignment Due tomorrow: 1.1 p 11 #53-54, 57-58, and p 13 #1-4 Signature and Class Info Get supplies – check on Monday Education's purpose is to replace an empty mind with an open one. Malcolm Forbes

Supply Check MONDAY! NO EXCUSES! Supply Check folder or binder with dividers ruler protractor 7 compass

LESSON Example 1a A. Use the figure to name a line containing the point X. A.line X B.line c C.line Z D.

LESSON B. Use the figure to name a plane containing point Z. A.plane XY B.plane c C.plane XQY D.plane P

LESSON Example 2b A.point B.line segment C.plane D.none of the above B. Name the geometric shape modeled by the ceiling of your classroom.

LESSON A.B. C.D. Example 3a A. Choose the best diagram for the given relationship. Plane D contains line a, line m, and line t, with all three lines intersecting at point Z. Also, point F is on plane D and is not collinear with any of the three given lines.

LESSON Example 4a A.one B.two C.three D.four A. How many planes appear in this figure?

LESSON Example 4b A.B, O, and X B.X, O, and N C.R, O, and B D.A, X, and Z B. Name three points that are collinear.

LESSON Example 4d A.point X B.point N C.point R D.point A