Chapter 13 - Identify and Draw Lines and Angles
In this chapter, your student is learning how to identify and draw lines and angles. The vocabulary terms associated with this chapter are: acute angle, adjacent angles, angle, complementary angles, degree, endpoints, intersecting lines, line, line segment, obtuse angle, parallel lines, perpendicular lines, point, protractor, ray, right angle, straight angle, supplementary angles, and vertex.
Help your student learn to identify and draw lines and angles using clocks!
By the end of this chapter, your student should feel confident with the learning targets and success criteria. Encourage your student to think of other contexts in which they can identify and draw lines and angles.
Have a great time “clocking in”!
Lesson |
Learning Target |
Success Criteria |
13.1 Points, Lines, and Rays |
Identify and draw points, lines, line segments, and rays. |
· I can identify points, lines, line segments, and rays. · I can name points, lines, line segments, and rays. · I can draw points, lines, line segments, and rays. |
13.2 Identify and Draw Angles |
Identify and draw angles. |
· I can identify angles as right, straight, acute, or obtuse. · I can name angles. · I can draw angles. |
13.3 Identify Parallel and Perpendicular Lines |
Identify and draw intersecting lines, parallel lines, and perpendicular lines. |
· I can identify intersecting lines, parallel lines, and perpendicular lines. · I can draw intersecting lines, parallel lines, and perpendicular lines. |
13.4 Understand Degrees |
Measure angles using degrees. |
· I can use fractional parts of a circle to measure angles. · I can explain how degrees are related to fractional parts of a circle. |
13.5 Find Angle Measures |
Find the measures of angles. |
· I can find the angle measures of a pattern block. · I can use a pattern block to find an angle measure. |
13.6 Measure and Draw Angles |
Measure and draw angles. |
· I can use a protractor to measure an angle. · I can use a protractor to draw an angle. |
13.7 Add Angle Measures |
Find the measure of an angle using its parts. |
· I can identify the parts of an angle. · I can find the measure of an angle by adding its parts. · I can write an equation to find an angle measure. |
13.8 Find Unknown Angle Measures |
Find the measures of unknown angles. |
· I can describe how a pair of angles are related. · I can write an equation to find an unknown angle measure. · I can solve an equation to find an unknown angle measure. |
Type of Angle | Description |
---|---|
Acute Angle | is less than 90° |
Right Angle | is 90° exactly |
Obtuse Angle | is greater than 90° but less than 180° |
Straight Angle | is 180° exactly |
Reflex Angle | is greater than 180° |
Full Rotation | is 360° exactly |