How many cereal circles are needed to cover the bottom (area) of the bowl? Explain your reasoning. Give your answer within a range of 5 circles.
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1 Points and Lines (Unit 1 Day 1).notebook September 08, 2016 Warm Ups How many cereal circles are needed to cover the bottom (area) of the bowl? Explain your reasoning. Give your answer within a range of 5 circles. Warm Ups VideoAnswer
2 How was yesterday? Any questions or concerns?
3 Learning Objectives I can recognize and model the relationships between points and lines. Success Criteria At what point do BN and XO intersect? Name all points collinear with BR.
4 Group Work In your group, go through questions If you finish early you can start discussing the questions at the end. Everyone in your group should be participating and writing in their packets. We will come back together in minutes. Figure 1 A B C E D 1. How many points are labeled? 2. How many lines are on this figure? 3. Is there a difference between line AB and line AD? 4. Where do AD and EC intersect? 5. Which 3 points lie on the same line? 6. What do the arrows mean at the end of the lines?
5 Figure 2 7. Name 3 points that lie on the same line. 8. Name 4 points that lie on the same plane. 9. Are points C and F on the same plane? What about points C and B? 10. What is the difference between the cursive letters and the other capital letters? Discussion What have you learned about points and lines? How are points and lines labeled? - Points - Lines
6 Vocabulary Undefined Terms: point, line, and plane Click in boxes for answers to appear Term Definition Named By Example Point Line Plane CANNOT DEFINE (but you can write what they look like) Capital letter 2 capital letters on the line OR 1 lowercase letter *must include line on top of capital letters* 3 capital letters NOT on the same line OR 1 cursive letter A P point A Q PQ, QP, line m plane BCD, plane CBD, plane K m Vocabulary Click in boxes for answers to appear Term Definition Named By Example Collinear Coplanar points that lie on the same line points (or lines) that lie on the same plane
7 Points, Lines, and Planes What are the differences between the three objects below? Vocabulary Click in boxes for answers to appear Term Definition Named By Example Segment a line that ends on both sides (called endpoints) 2 capital letters (must be endpoints) *must include segment on top* P, Q Ray one end is like a line, the other is like a segment 2 capital letters (one must be endpoint) *must include ray on top going correct direction* P, Q Angle the intersection of 2 rays at a common endpoint vertex 3 capital letters where the vertex is the middle letter OR 1 capital letter (the vertex) *must include angle symbol in front* B A C,,
8 Practice Problems 11. Use the figure to name a line containing point K. 12. Name a plane containing point L. Practice Problems 13. Use the figure to name a line containing point X. (a) line X (b) line XQY (c) line Z (d) YQ
9 Practice Problems 14. Name three points that are collinear. 15. Are points A, B, C, and D coplanar? Practice Problems 16. Choose the best diagram for the given relationship: Plane D contains line a, line m, and line t, with all three lines intersecting at point Z. Also, point F is on plane D and is not collinear with any of the three given lines. A B 1
10 Practice Problems 17. Draw and label a figure for the following situation: AB and DE intersect at point P. Add point C so that it is NOT collinear with AB or DE. Success Criteria 18. At what point do BN and XO intersect? 19. Name all points collinear with BR. Rate Your Understanding (0-5) Homework: Finish Through pg. 5
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