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* *Reflection: Organizational Systems
Line It Up! - Section 1: Do Now

One strategy for organizing my class notes which has worked well is using a template on my powerpoint or whiteboard slides. Here this Line It Up - Do Nowfor the lesson. I find that my students know and expect the Do Now questions to be in the same place, and also, can easily identify where the objective is and also the homework assignment.

I also use homework numbers to help students (and myself!) keep organized. The HW #14 that is shown in this slide represents either a worksheet or set of problems from our textbook. These assignments can be found on each Unit Outline which I provide students with at the beginning of each unit. These are easy to follow and I believe help to mimic outlines which they will receive in college. Another benefit is that students who are absent still have access to content which will be covered in class and can work on this when they are up to it.

*Organizational Systems: Setting-Up Class*

# Line It Up!

Lesson 6 of 9

## Objective: SWBAT write equations of lines that are parallel and perpendicular given slopes and points. SWBAT construct parallel and perpendicular lines.

#### Do Now

*10 min*

Students will find the slope of a line given 2 points. This is a pre-requisite skill but may require review for students, particularly the slope formula.

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After reviewing parallel and perpendicular lines, we will review with students how to write equations in slope-intercept form and point-slope form. Then, you can focus on how to write parallel and perpendicular lines with given information like an equation and a point (MP #8).

The topic covered in this section are a review of CCSS in Algebra and you may find that students with weaker backgrounds need a more concrete review of this topic. The next lesson in this curriculum, Perp Lines are Perfect!, will continue to review writing equations.

*Students Notes - Line It Up!*

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#### Construction

*10 min*

Students will read through the steps to construct a parallel line through a given point, and can watch the video of this being constructed (MP 5). I like to watch the entire video first, read through the steps to construction, and then go through the construction step by step with the whole class. There is a second practice example provided for students to try on their own.

**Student Notes - Line It Up!**

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This is a packed lesson and there may not be time for students to complete the activity; in this case the class work can be assigned as homework.

For the exit ticket, students will write the equation of a line perpendicular to a given line and through a given point. This may be a good exit ticket to collect to see how and if students have strong algebra skills or if this topic needs further reinforcement.

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- UNIT 1: Introduction to Geometry: Points, Lines, Planes, and Angles
- UNIT 2: Line-sanity!
- UNIT 3: Transformers and Transformations
- UNIT 4: Tremendous Triangles
- UNIT 5: Three Triangle Topics
- UNIT 6: Pretty Polygons
- UNIT 7: MidTerm Materials
- UNIT 8: Circles
- UNIT 9: 3-D Shapes and Volume
- UNIT 10: Sweet Similar Shapes
- UNIT 11: Trig Trickery
- UNIT 12: Finally Finals

- LESSON 1: Proving It
- LESSON 2: Prove It with Angle Relationships
- LESSON 3: Skew Lines and their Friends
- LESSON 4: PTA (Parallel Lines, Transversals and Angles)
- LESSON 5: Flow Proofs and PTA
- LESSON 6: Line It Up!
- LESSON 7: Perp Lines are Perfect
- LESSON 8: Parabolas and Review of Line-sanity!
- LESSON 9: Assessment for Line-Sanity