Transcript rtt Day 1 SD 2.1 Angle Sums of Regular Polygons.pptx

Quick Start Expectations
1. Come in and sit quietly.
2. Fill in planner and HWRS:
Textbook: CMP3 Grade 7 Unit: Shapes and Designs
pp. 52, 56-57 ACE 1,2 and 17,18
Cut out at least 6 shapes
3. Work on Warm-up
Warm-up Answers:
Quick Start Expectations
1. Come in and sit quietly.
2. Fill in planner and HWRS:
Textbook: CMP3 Grade 7 Unit: Shapes and Designs
pp. 52, 56-57 ACE 1,2 and 17,18
Cut out at least 6 shapes
3. Review quiz for mistakes
What is a regular polygon?
In Investigation 1,
you identified properties of polygons.
What makes a polygon regular?
All sides are the same size AND all angles are the same size.
What happens to the measures of the angles
as the number of sides increases?
3
4
5
6
7
8
9
10
60°
90°
108°
120°
180°
360°
540°
720°
How do your results compare?
3
60°
180°
4
90°
360°
5
108°
540°
6
120°
720°
7
~128.6°
900°
8
135°
1080°
9
140°
1260°
10
144°
1440°
Homework:
Textbook: CMP3 Grade 7
Unit: Shapes and Designs,
Investigation 2:
pp. 52, 56-57 # 1, 2 , 17, 18
Content
ACE
Pacing
Materials
Resources
Problem 2.1
1–2, 17–18
1 day
Labsheet 2ACE:
Exercise 2 Table
(accessibility) Labsheet
2ACE: Exercise 2
Scaffolded
(accessibility) shapes
sets, angle rulers
Problem 2.2
3–11, 16, 19, 23–24
1 day
Labsheet 2.2: Trevor's Teaching Aid 2.2A: Angle Sum of Triangle and
and Casey's Methods QuadrilateralTeaching Aid 2.2B: Angle Sums of Any
Polygon
Problem 2.3
12–13, 20
1 day
shapes sets, angle
rulers
Problem 2.4
14–15, 21, 22, 25
1 day
Labsheet 2.4A:
Question A
(accessibility) Labsheet
2.4B: Question Dangle
rulers
Mathematical Reflections
½ day
Assessment: Partner Quiz
1 day
Partner Quiz
Teaching Aid 2.1A: Regular PolygonsTeaching Aid
2.1B: Angle Sum Patterns in Regular
PolygonsTeaching Aid 2.1C: Different Sized Regular
Polygons
Teaching Aid 2.3: HoneycombsTessellations Activity
Assessments Answer Key