Lesson Plan for SD 1.1 and 1.2, Part 1 (50 minutes): Target: I can define vocabulary related to angles (right, acute, obtuse, straight). 8 minutesWarm-up: Factors of 360 (may need to review what is a factor) 10 minutesClasswork A-D: sorting and sketching triangles (with groups) 5 minutesCome together to go over groups/characteristics and examples of sketches. 10 minutesAdd to Vocabulary to Tool Kit Acute triangle/angle, obtuse triangle/angle, right triangle/angle, scalene triangle, isosceles triangle, equilateral triangle, congruent Note: Give students time to sketch examples and practice labeling with marks congruent sides and angles. 10 minutesWork with group to complete Angle Notes with word/number bank. 5 minutesMake sure answers are accurate for Angle Notes. 2 minutesReminders: Homework is a Zaption video on SD 1.2. You will need a ruler and protractor for some homework assignments this unit – make sure you have one at home. This unit is short – expect 3 exit tickets and a test. MathXL – unit readiness is assigned, then follow study plan. Extra Time? Challenge puzzles on angles.

Quick Start Expectations 1.Come in and sit quietly. 2.Fill in Learning Log: SD 1.2 Zaption Video 3.Work on Warm-up (notebook): What is the name of our next unit?

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 75, 90, 120, 180, Prime Factorization of 360: Factors of 360:

Begin working on classwork problems A-D. From what you already know, sort the triangles into groups. Can your team NAME all SIX GROUPS of Triangles?

Begin working on classwork problems A-D. RIGHT ACUTE OBTUSE EQUILATERALISOSCELESSCALENE

Group:RIGHT ACUTEOBTUSEEQUILATERALISOSCELESSCALENE Descrip- tion: One right angle Right angle = 90⁰ Three acute angles Acute angle = < 90⁰ One obtuse angle Obtuse angle = > 90 but < 180⁰ Three congruent sides Congruent = equal Two congruent sides No congruent sides Examples from Triangle Set

B.Sketch a right, isosceles triangle. Which triangle in the Set has these characteristics? _____ C.Sketch an acute, equilateral triangle. Which triangle in the Set has these characteristics? _____ D.Sketch an obtuse, scalene triangle. Which triangle in the Set has these characteristics? _____ E D A

terminal side initial side

degree 0 counterclockwise initial terminal right terminal side initial side

180 straight 6040 acute obtuse

Reminders: Homework is a Zaption on SD 1.2. You will need a ruler and protractor for some homework assignments this unit – make sure you have one at home. This unit is short – expect 3 exit tickets and a test (no Check Ups or Partner Quiz). MathXL – unit readiness is assigned, then follow study plan. Extra Time? Challenge puzzles on angles.