In Chapter 10 students will:
Draw and identify lines and angles
Classify shapes by properties of their lines and angles
Generate and analyze patterns
Vocabulary:
Line – a straight path of points that continues without end in both directions
Ray - a part of a line, with one endpoint, that is straight and continues in one direction
Acute angle – an angle that has a measure less than a right angle; less than 90 degrees
Obtuse angle – an angle that has a measure greater than a right angle; more than 90 degrees but less than 180 degrees
Right angle – an angle that forms a square corner and has a measure of 90 degrees
Straight angle - an angle in which two rays point in the opposite directions so that they form a line; 180 degrees
Line of symmetry - an imaginary line that divides a shape into two congruent parts
Line symmetry - what a shape has if it can be folded along a line so that its two parts match exactly
Chapter 10 videos:
Lesson 10.1 Lines, Rays, and Angles
Lesson 10.2 Classify Triangles
Lesson 10.3 Parallel and Perpendicular Lines
Lesson 10.4 Classify Quadrilaterals
Lesson 10.5 Line Symmetry
Lesson 10.6 Find and Draw Lines of Symmetry
Lesson 10.7 Problem Solving-Shape Patterns