BHS Math Guide

Secondary I & I H Unit Guide - Trimester Unit 6

Transformations and Symmetry

PACING

KEY LANGUAGE USE(S)

Semester:

Argue

● Everyday: 15 days ● Regular: 10 days ● Honors: 9 days

KEY STANDARD(S) I.G.CO.1 I.G.CO.4 I.G.CO.5 I.G.CO.2 I.G.CO.3 I.G.CO.6 END OF UNIT COMPETENCIES WITH LANGUAGE EXPECTATIONS By the end of Unit 6, students will be able to: ● Describe the sequence of rigid motions that transformed a pre-image to its image ● Defne the different rigid transformations using precise geometric terms such as

○ Congruent, image, orientation, pre-image/image, refection, rotation, translation, opposite reciprocal slope, parallel lines, perpendicular lines, orientation, angle, angle of rotation, circle, concentric circles, degree, perpendicular bisector ● Carry out rigid transformations ● Identify all angles of rotational symmetry and lines of symmetry ● Provide justifcation and reasoning to prove a congruence statement and attributes of a rectangle using correct math vocabulary such as: ○ Congruent (CPCTC), diagonal, line of symmetry, regular polygon, rotational symmetry, trapezoid, bisect, bisector, midpoint, n-gon, opposite angles, opposite vertices, opposite sides, conjecture

SCAFFOLDING IN ACTION

● Lesson 6.1: Launch - use visuals of how animated cartoons are drawn, Explore - offer choice with which transformation to start with, utilize software such as Geogebra Discus - graphic organizer to record features of each transformation ● Lesson 6.2: Launch - Think-Pair-Share, Explore - complete at least one experiment with each of the two different triangles ● Lesson 6.3: Jump start - review previous notes on Pythagorean Theorem ● Lesson 6.4: Launch - Think-Pair-Share, Explore - Stronger & Clearer Each time (successive share & revise) ● Lesson 6.5: Jump start - Which One Doesn’t Belong? Explore - let students choose which quadrilateral they want to start with ● Lesson 6.6: Jump start - provide a reference sheet about refecting a fgure ● Lesson 6.7: Launch - Think-Pair-Share, use a graphic organizer for each quadrilateral for students to record responses

Skill Building

Priority Lessons

Ready for More?

Extension

RESOURCES

● Unit 6 OUR Online Resource ● Desmos - Lesson 6.1

● Unit 6 Homework Help Videos for Students