Unit 3Parallel and Perpendicular Lines 

Reasoning & ProofESSENTIAL QUESTION  How can you make a conjecture and prove that it is true?
Measurement Coordinate Geometry 

Lesson/Objective  Supplemental Lessons  Online Practice  Homework 
31
Lines and Angles
Objectives: To identify relationships between objects in space. To identify angles formed by two lines and a transversal. ESSENTIAL
UNDERSTANDING: Not all lines and not all planes intersect. 

LESSON QUIZ 
hw #31 Due Mon Oct 15
Read section 32

32
Properties of Parallel Lines Objectives: To prove theorems about parallel lines. ESSENTIAL
UNDERSTANDING: To use properties of parallel lines to find angle
measures 
Using the properties of parallel lines in a twocolumn proof Using the properties of parallel lines to find measures of angles 
LESSON QUIZ 
DOUBLE ASSIGNMENT!! hw #32 Due Weds Oct 17 hw #33 Due Weds Oct 17 
33
Proving Lines Parallel Objective: To determine whether two lines are parallel ESSENTIAL
UNDERSTANDING: You can use certain angle pairs to determine
whether lines are parallel 

LESSON QUIZ 

34
Parallel and Perpendicular Lines Objective: To relate parallel and perpendicular lines ESSENTIAL UNDERSTANDING:
You can use the relationships of two lines to a third line to decide
whether the two lines are parallel or perpendicular to each other 
VIDEO TUTORS 
LESSON QUIZ 
hw #34 Due
Fri Oct 19 Read section 34 pg 16768 #16 All, #721 Odd hw #35: Due Tues Oct 23 Read section 35 pg 17577 #18 All, #939 Mult of 3 pg 181 MidChapter Quiz would be a nice hw option :)

35
Parallel Lines and Triangles Objective: To use parallel lines to prove a theorem about triangles. To find measures of angles of triangles. ESSENTIAL UNDERSTANDING:
The sum of the angle measures of triangles is always the same. 
VIDEO TUTORS 
LESSON QUIZ 

UNIT 3 QUIZ on Sections 31 thru 35: 

36
Constructing Parallel and Perpendicular Lines Objective: To construct parallel and perpendicular lines ESSENTIAL UNDERSTANDING:
In addition to knotted rope, you can also use a straightedge and compass
to construct parallel and perpendicular lines 
VIDEO TUTORS 
LESSON QUIZ 
hw #36 and
Quiz Review Due Tues Oct 23 pg 18688 #16 All #717 Odd,23,27,29 
37
Equations of Lines in the Coordinate Plane Objective: To graph and write linear equations. All aboard the Algebra RollerCoaster... woohoo!! ESSENTIAL UNDERSTANDING: A line can be graphed and its equation written when certain facts about the line, such as its slope and a point on the line, are known. DUH! PointSlope Form!! 
VIDEO TUTORS Graphing a linear equation using slopeintercept form Writing an equation in pointslope form using a point and the slope 
LESSON QUIZ 
hw
#37 & 38 Due Thurs Oct 25 hw #37 
38
Slopes of Parallel and Perpendicular Lines Objective: To relate slope to parallel and perpendicular lines (you were paying attention in Algebra class, yes?). ESSENTIAL UNDERSTANDING:
Comparing the slopes of two lines can show whether the lines are parallel
or perpendicular. 
VIDEO TUTORS Determining whether lines are parallel Writing equations of parallel lines 
LESSON QUIZ 

UNIT 3 REVIEW  
UNIT 3 TEST: 