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Introduction to Collinear and Coplanar Concepts in Geometry (Week #1A - Section 3)

In this lesson, students will learn the definitions and examples of collinear and coplanar points, as per California Standard CA.1.0. Through warm-up questions, students will identify graphed points and determine their classification. Additional activities involve recognizing examples of points, lines, and planes in real-world contexts. Vocabulary focus will include terms such as "co-", "collinear", and "coplanar". This foundation will enhance understanding of geometric relationships essential for future concepts.

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Introduction to Collinear and Coplanar Concepts in Geometry (Week #1A - Section 3)

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  1. Geometry Week #1A Section 3

  2. Warbler on a cherry tree branch

  3. Homework Wk #1A Section 2Answers • 1. Perpendicular • 2. Parallel • 3. Skew • 4. Parallel • 5. Perpendicular • 6. MN or KG • 7. KL or JM or MN • 8. MN or KL or MJ • 9. Plane LMN • 10. HN or GH or JM or KJ • Extra Credit: Only one. See drawing.

  4. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • Give the coordinates of the graphed points. • 1. Point A - ________ • 2. Point B - ________ • 3. Point C - ________ • 4. Point D - ________

  5. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • Give the coordinates of the graphed points. • 1. Point A – ( - 2, 1 ) • 2. Point B - ________ • 3. Point C - ________ • 4. Point D - ________

  6. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • Give the coordinates of the graphed points. • 1. Point A – ( - 2, 1 ) • 2. Point B – ( 4, 0 ) • 3. Point C - ________ • 4. Point D - ________

  7. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • Give the coordinates of the graphed points. • 1. Point A – ( - 2, 1 ) • 2. Point B – ( 4, 0 ) • 3. Point C – ( 3, - 2 ) • 4. Point D - ________

  8. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • Give the coordinates of the graphed points. • 1. Point A – ( - 2, 1 ) • 2. Point B – ( 4, 0 ) • 3. Point C – ( 3, - 2 ) • 4. Point D – ( - 1, - 3 )

  9. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • State whether each of these is best described as a point, a line, or a plane. • 5. the corner of the room - __________ • 6 the top of a desk - __________ • 7. the knot in a piece of thread - _________ • 8. the crease in a piece of paper - __________

  10. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • State whether each of these is best described as a point, a line, or a plane. • 5. the corner of the room – point or line • 6 the top of a desk - __________ • 7. the knot in a piece of thread - _________ • 8. the crease in a piece of paper - __________

  11. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • State whether each of these is best described as a point, a line, or a plane. • 5. the corner of the room – point or line • 6 the top of a desk - plane • 7. the knot in a piece of thread - _________ • 8. the crease in a piece of paper - __________

  12. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • State whether each of these is best described as a point, a line, or a plane. • 5. the corner of the room – point or line • 6 the top of a desk - plane • 7. the knot in a piece of thread - point • 8. the crease in a piece of paper - __________

  13. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean..CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. • WARMUP QUESTIONS • State whether each of these is best described as a point, a line, or a plane. • 5. the corner of the room – point or line • 6 the top of a desk - plane • 7. the knot in a piece of thread - point • 8. the crease in a piece of paper - line

  14. Week #1A Section #3 Notes VOCABULARY • Co- • A prefix that means together, like co-captains • Collinear • Coplanar

  15. Week #1A Section #3 Notes VOCABULARY • Co- • A prefix that means together, like co-captains • Collinear • on the same line • Coplanar

  16. Week #1A Section #3 Notes VOCABULARY • Co- • A prefix that means together, like co-captains • Collinear • on the same line • Coplanar • on the same plane • Also! Noncollinear and noncoplanar

  17. Collinear Birds

  18. Week #1A Section #3 Notes VOCABULARY

  19. Week #1A Section #3 Notes VOCABULARY

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