L & A for geo
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This document defines and describes different types of lines and angles. It explains that lines can be rays, segments, parallel, or perpendicular and intersect at points. Angles are defined as right, obtuse, or acute based on their measure. The document is intended to teach 3rd grade students about these basic geometry concepts.
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L & A for geo
- 1. Lines and Angles Ms. McGhee 3rd grade 2015
- 2. Lines Lines Lines Rays Segments Parallel lines Perpendicular lines Intersecting lines Point Midpoint
- 3. Lines Lines are a straight set of points that extend (stretch) in opposite directions. Lines are everywhere!
- 4. Rays A ray is part of a line that starts at an end point and extends in the opposite direction.
- 5. Segments A segment is part of a line that starts and ends between two endpoints.
- 6. Parallel Lines Parallel lines are two or more lines beside each other that never intersect.
- 7. Perpendicular Lines Perpendicular lines are lines that intersect at square corners.
- 8. Intersecting Lines Intersecting lines meet at a common point.
- 9. Quiz: What do you know?
- 10. What type of lines do you see?
- 11. Angles Right Obtuse Acute
- 12. Right Angle A right angle is always 90 degrees and forms a square in the corner.
- 13. Obtuse Angles Obtuse angles are greater than a right angle.
- 14. Acute Angles Acute angles are less than right angles.
- 15. What types of angles do you see?