16.1 Polygons p. 354

Introduction: Quick Review Objective: to name and classify polygons Vocabulary: • polygon = closed plane figure w/ straight sides that are connected line segments1. vertex = each point where two sides meet2. n-gon = polygon w/ “n” sides3. decagon = 10-sided polygon

Guided Learning:1. Review divisibility rules (slide 2)2. Review EXAMPLES A. and B. -- How did you decide 610 was not divisible by 3?

http://www.hbschool.com/glossary/math2/index6.html

16.2 Triangles p. 356

Introduction: Quick Review Objective: learn how to classify triangles and solve problems involving angle measures of triangles Vocabulary: • acute triangle = contains only acute angles1. obtuse triangle = contains only one obtuse angle• right triangle = contains only one right angle1. equilateral triangle = three congruent sides2. isosceles triangle = exactly two congruent sides• scalene triangle = no congruent sides

Guided Learning:1. Review divisibility rules (slide 2)• Review EXAMPLES A. and B. -- How did you decide 610 was not divisible by 3?

http://www.hbschool.com/glossary/math2/index6.html http://www.bbc.co.uk/schools/ks2bitesize/maths/shape_space/shapes/play.shtml

http://www.mathwarehouse.com/geometry/triangles/interactive-triangle.htm

http://jmathpage.com/JIMSGeometrypage.html

16.3 Find a Pattern p. 360

Introduction: Quick Review Objective: learn how to use the strategy “find a pattern” to solve problems Vocabulary: 1. regular polygon = polygon which all sides and angles are congruent

http://www.hbschool.com/glossary/math2/index6.html

16.4 Quadrilaterals p. 362

Introduction: Quick Review Objective: learn how to identify, classify, and compare quadrilaterals

http://www.hbschool.com/glossary/math2/index6.html http://jmathpage.com/JIMSGeometrypage.html

16.5 Draw Plane Figures

p. 366

Introduction:1. Quick Review2. Objective: learn how to draw plane geometric figures

Square Dot Geoboard

Isometric Dot Paper

Square Dot Paper

Isometric Dot Geoboard

16.6 Circles p. 368

Introduction:1. Quick Review: Complete on your white board2. Objective: Learn how to identify and draw parts of circles3. Warm-Up: *Draw a dot on your white board, label it “O”. Next, draw a circle around the center dot you just drew.*Draw a radius and label it “radius” - someone explain how you did it!*Draw a diameter and label it “diameter” - someone explain how you did it!*Draw a chord and label it “chord” - someone explain how you did it!

16.6 Circles continued...

Vocabulary: • radius - line segment with one endpoint at the center of a circle and the other endpoint on the circle • diameter - line segment passing through the center of a circle and has both endpoints on the circle• chord - line segment with its endpoints on a circle

Harcourt Math Glossary

Properties of Polygons

Name Sometimes Always Never

polygon

isosceles triangle

scalene triangle

equilateral triangle

right triangle

parallellogram

rectangle

rhombus

square

trapezoid