# Parallel and Perpendicular Lines

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1 Trinity University Digital Trinity Understanding by Design: Complete Collection Understanding by Design Summer Parallel and Perpendicular Lines Danielle R. Kendrick Trinity University, Follow this and additional works at: Repository Citation Kendrick, Danielle R., "Parallel and Perpendicular Lines" (2014). Understanding by Design: Complete Collection. Paper This Instructional Material is brought to you for free and open access by the Understanding by Design at Digital Trinity. It has been accepted for inclusion in Understanding by Design: Complete Collection by an authorized administrator of Digital Trinity. For more information, please contact

2 Parallel and Perpendicular Lines Stage 1 Desired Results Established Goals (e.g., standards) G.2.B make conjectures about angles, lines, polygons, circles, and 3D figures and determine the validity of the conjectures, choosing from a variety of approaches such as coordinate, transformational, or axiomatic. G.9. formulate and test conjectures about the properties of parallel and perpendicular lines based on explorations and concrete models. G.2. use constructions to explore attributes of geometric figures and to make conjectures about geometric relationships. G.9.B formulate and test conjectures about the properties and attributes of polygons and their component parts based on explorations and concrete models. G.1.B develop an awareness of the structure of a mathematical system, connecting definitions, postulates, logical reasoning, and theorems. G.1.C compare and contrast the structures and implications of Euclidean and non-euclidean geometries. G.7.B use slopes and equations of lines to investigate geometric relationships, including parallel lines, perpendicular lines, and special segments of triangles and other polygons. Transfer Students will independently use their learning to design a city (map) using parallel, perpendicular, and intersecting lines. They will be able to identify special angle pairs using buildings. Understandings Students will understand that. -Rules, postulates, and theorems allow us to make assumptions about future behavior and to draw conclusions based on these assumptions. -ngles and parallel and perpendicular lines are used in real world settings. Knowledge Students will know -Euclid s 5 th postulate is assumed and not proven -different geometries have different parallel postulates and that determines whether special angle relationships are valid. Vocabulary: Parallel Perpendicular Negative reciprocal Opposite reciprocal lternate interior angles lternate exterior angles Same side interior angles Same side exterior angles Corresponding angles Slope y-intercept Point slope form Standard form Slope- Intercept form Linear equation Transversal Meaning Essential Questions cquisition - Why are properties, postulates, and theorems important in mathematics? - How are angles and parallel and perpendicular lines used in real world settings. Skills Students will be able to -find the negative reciprocal of a given slope -find the slope of a line from a graph, table, and written description. - write linear equations in point slope, slope, intercept, and standard form. - set up and solve linear equations using special angle pairs. -find the equation of a line given a line parallel or perpendicular and a point. - identify alternate interior, corresponding, alternate exterior, same side interior, and same side exterior angles. Stage 2 Evidence CODE (M or T) Evaluative Criteria (for rubric)

3 T Performance Task(s) Students will demonstrate meaning-making and transfer by building a city following specific guidelines. Their cities will be constructed with angles, intersections, parallel, perpendicular, intersecting, and transversal streets. They design the city so that buildings are located at particular points within alternate interior or exterior angles, corresponding angles, etc. They will make an algebraically accurate blueprint of their city on graph paper and write the equations of the lines that form their street using the three different forms of linear equations. Students will also record the locations of all traffic lights (the intersection of two lines) in their city. Other Evidence (e.g., formative) Linear Equations Quiz Parallel and Perpendicular Lines Quiz Constructions Quiz Parallel and Perpendicular Lines Exam Homework, Exit Tickets, and Do Nows Stage 3 Learning Plan CODE (, M, T) Pre-ssessment How will you check students prior knowledge, skill levels, and potential misconceptions? To check students prior knowledge and mastery of algebra I skills (writing equations of lines and using slope to determine whether lines are parallel, perpendicular or neither.) students will take the Quiz- Writing Equations Version B. The quiz asks students to write, graph, and manipulate linear equations. Student performance on the pre-assessment will determine how much whole group algebra remediation is required. /M Learning ctivities Day 1: Unit Hook: (10-15 minutes) Students will come into the classroom and see that it is decorated with road maps. Maps of cities will include: San ntonio, Houston, Mexico City, Boston, etc. We will discuss how city planners/architects decide the optimal layouts for cities. We will examine cities like Boston that don t quite follow a grid system. We will decide how efficient that is or isn t. I will then introduce the Design a City Project. Students will be assigned groups based on the triads I have assigned them to sit in. We will review the project guidelines and discuss what information we need to learn/review in order to complete the project. Lesson: (30 minutes) The actual lesson for the day will consist of a review of slope intercept form of a linear equation. Students will attach the guided notes sheet in their INBs. We will complete the interactive notes together as a class. fter the notes students will be given a set of problems to practice independently. Exit Ticket: (10 minutes) 5 question Illuminate Quick Quiz. When LW. Those scoring lower will take the Slope Intercept Form Practice ssignment home and will redo the exit ticket during the following class period. Progress Monitoring (e.g., formative data) Exit Ticket 3-1

4 Day 2: Lesson: (40 minutes) We will complete several guided practice problems in our INBs as a class. fter 4-5 examples students will work in the cooperative learning groups on the Packet Linear Equations. Exit Ticket: (5 minutes) Revisit CFS. Did we meet our goal? What do you need from Mrs. Kendrick to meet the CFS? CFS: Check in and work time Day 3: Do Now (10 minutes) Students will get their INBs ready for the day (writing down Lesson: (35 minutes) The lesson for the day will consist of a review of point slope form of a linear equation. Students will attach the guided notes sheet in their INBs. We will complete the interactive notes together as a class. fter the notes students will be given a set of problems to practice independently. Exit Ticket: (10 minutes) 5 question Illuminate Quick Quiz. When LW. Those scoring lower will take the Point Slope Form Practice ssignment home and will redo the exit ticket during the following class period. Day 4: Exit Ticket 3-2 Lesson: (35 minutes) The lesson for the day will consist of a review of the slopes of parallel and perpendicular lines. Students will attach the guided notes sheet in their INBs. We will complete the interactive notes together as a class. fter the notes students will be given a set of problems to practice independently. Exit Ticket: (10 minutes) 5 question Illuminate Quick Quiz. When LW. Those scoring lower will take the Parallel and Perpendicular Slopes Practice ssignment home and will redo the exit ticket during the following class period. Day 5: Lesson: (35 minutes) The lesson for the day will consist of a review of Exit Ticket 3-3 Exit Ticket 3-4

5 /M the standard form of linear equations. Students will attach the guided notes sheet in their INBs. We will complete the interactive notes together as a class. fter the notes students will be given a set of problems to practice independently. Students will begin working on their final project. (I will show an example during class. Students will have an extended class period one of these days we will work on projects then) /M Exit Ticket: (10 minutes) 5 question Illuminate Quick Quiz. When LW. Those scoring lower will take the Standard Form Practice ssignment home and will redo the exit ticket during the following class period. Day 6: Lesson: (30 minutes) We will play a review game to get ready for our quiz! Maybe Numbered Heads or round the World. Exit Ticket: (15 minutes) Students will take the Writing Equations Quiz Version B. If time continue project work. Writing Equations Quiz Version B Day 7: Do Now (10 minutes) Students will get their INBs ready for the day (writing down Pass back/ Discuss quizzes. Lesson: (35 minutes) On the whiteboard, there will be a pair of parallel lines cut by a transversal using painters tape. In addition, there will be laminated cards that say corresponding angles, alternate interior/exterior angles, same side interior/exterior angles, vertical angles, and linear pairs. I will have several students try and position the cards where they belong. fter several attempts and with some guidance the students should have all of the cards in the right place. We will discuss the positions and fill in the interactive notes in our INBs. The notes include which special angle pairs are congruent and which are supplementary. Exit Ticket: (10 minutes) 10 question Illuminate Quick Quiz. When LW. Those scoring lower will take the Special ngle Pairs Practice ssignment home and will redo the exit ticket during the following class period. Day 8: Exit Ticket 3-5

6 /M Lesson: (40 minutes) s a class we will work together to solve a parallel lines puzzle on the board. We will determine the measure of every angle in the puzzle using our special angle pair relationships. fter we have finished students will complete several puzzles of their own. One of the puzzles will be an overlay on a map. (ties in to our final project) Parallel Lines Puzzles Exit Ticket: (5 minutes) Revisit CFS. Did we meet our goal? What do you need from Mrs. Kendrick to meet the CFS? Day 9: Do Now (10 minutes) Students will get their INBs ready for the day (writing down Lesson: (40 minutes) Students will complete the guided notes in their INBs. We will be using special angle pairs to solve problems using algebraic expressions. fter several examples, students will work independently on the scavenger hunt practice activity. Exit Ticket: 5 question Illuminate Quick Quiz. When students finish their exit ticket they will scan it in to the system. Students earning a score of 80% ( 4/5) or better will not be assigned LW. Those scoring lower will take the Special ngle Pairs Practice ssignment home and will redo the exit ticket during the following class period. Day 10: Exit Ticket 3-6 /M Lesson: (20 minutes) Students will take the Parallel lines and Special ngle Pairs Quiz Project Work time: Students will work with their groups to get a sketch of their map. Position their streets and buildings and begin finding their equations. Day 11: Parallel Lines and Special ngle Pairs Quiz Do Now (5 minutes) Students will get their INBs ready for the day (writing down Lesson: Students will attach the constructions of parallel and perpendicular lines guided notes into their INBs. We will complete several constructions together. They will then spend several minutes practicing before completing their exit ticket. Exit ticket: Students must construct one parallel and one perpendicular line on their own. I will check their exit tickets. There will be no HW assigned since I cannot send supplies home. Exit Ticket 3-7

7 Day 12: /M M T Lesson: Constructions Quiz. Project work day. Projects will be due the day after the exam. Day 13: Do Now (5 minutes) Students will get their INBs ready for the day (writing down Lesson: We will play a review game to get ready for the unit exam. Exit Ticket: (5 minutes) Revisit CFS. Did we meet our goal? What do you need from Mrs. Kendrick to meet the CFS? Day 14: Parallel and Perpendicular Lines Exam -ND- Project Work Day Day 15: Projects Due/ Exhibition Students with completed projects will present them to the class and visitors in a gallery walk. Constructions Quiz Review Game responses Parallel and Perpendicular Lines Exam Design a City Project

8 Name: Date: CITY PROJECT You will work in groups of three. Please remember that every group member is a part of the architectural design team and should actively participate in the every phase of the project! Students who choose not to participate will be removed from their group and receive a ZERO for the assignment. Part I (30 points): You and your group are to design your own city and include the following: 1. City name and population at the top of the project 2. Three parallel streets (each street must be named) 3. Two transversal streets (each street must be named) 4. One perpendicular street (each street must be named) 5. Traffic light/stop sign at each intersection. ( Marked with a red point). Part II (30 points): *To demonstrate your knowledge of special angle pairs, you will place buildings to mark the specified special angle pairs. In the spaces provided below, please name the buildings that you have used. * I. lternate Exterior ngles: II. lternate Interior ngles: III. Same Side Exterior ngles: IV. Same Side Interior ngles: V. Corresponding ngles: *To demonstrate your knowledge of writing linear equations, complete the chart on the back!* Part III (10 points):. Include the city name and population B. Label each building. C. Label each street. D. Mark each intersection with a stop sign/light. E. Color/ Decorate. BE CRETIVE!!!!!

9 Part II cont. (30 points): 1. Parallel Streets Name of Street Equation (Slope Intercept) Equation (Point-Slope) Equation (Standard Form) Transversal Streets Name of Street Equation (Slope Intercept) Equation (Point-Slope) Equation (Standard Form) Perpendicular Street Name of Street Equation (Slope Intercept) Equation (Point-Slope) Equation (Standard Form) Which street(s) is this street perpendicular to? Locations of Stop Signs/ Traffic Lights

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