Unit
12: Geometry and Measurement 
Text 
Mr.
Yen's Videos 
Youtube Video Names and Links 

Page 


Chapter 25  Plane Figures 

Location: Geometry 

Lesson 1  Hands On: Points, Lines, and
Line Segments 
558 
Points, Line Segments, and Lines 
Points, Line Segments, and Lines 
Lesson 2  Rays and Angles 
560 
Naming Rays and Angles 
Naming Rays and Angles 
Lesson 3  Polygons and Quadrilaterals 
564 
Classifying Angles 
Classifying Angles 
Lesson 4  Classify Triangles 
566 
Polygons 
Polygons 
Lesson 5  Circles 
568 
Quadrilaterals 
Quadrilaterals 
Lesson 6  PS Field Trip: Adventure
Playground 
572 
Classifying Triangles 
Classifying Triangles 
Chapter Review / Test 
576 

Circles 




Chapter 26  Congruence and
Symmetry 

Location: Geometry 

Lesson 1  Line Symmetry 
580 


Lesson 2  Line or Bilateral Symmetry 
582 


Lesson 3  Rotational Symmetry 
584 


Lesson 4  Congruent Figures 
588 


Lesson 5  PS Strategy: Patterns in the
Coordinate Grid 
592 


Chapter Review / Test 
596 






Chapter 27  Perimeter and
Area 

Location: Measurement 

Lesson 1  Hands On: Model Perimeter and
Area 
600 


Lesson 2  Use Formulas for Perimeter 
602 

Area of Rectangles and Squares

Lesson 3  Use Formulas for Area 
604 

Perimeter of Complex Figures

Lesson 4a  Perimeter and Area of Complex
Figures Lesson 4b

608 

Area of Complex Figures

Lesson 5  Problem Solving Strategy: Use
Formulas 
614 


Chapter Review / Test 
616 






Chapter 28  Solid Figures 

Location: Geometry 

Lesson 1  Hands On: Use Nets o Build
Solid Figures 
620 


Lesson 2  Solid Figures 
622 


Lesson 3  Surface Area 
626 


Lesson 4  Volume 
628 


Lesson 5  Problem Solving Plan: Surface
Area or Volume 
632 


Chapter Review / Test 
636 

