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Math Grade 4

Math Grade 4. Mrs. Ennis Line Segments, Rays, and Angles Lesson 34. 346 + 33,456 + P = 34,637 354 – D = 318 T ÷ 8 = 4 72 x 6 = K V ÷ 9 = 9 remainder 4 3 quarters + 5 dimes + 6 pennies =. What is the perimeter of this triangle? 8. Write in words: 42,805. 7cm. 7cm. 7cm.

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Math Grade 4

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  1. MathGrade 4 Mrs. Ennis Line Segments, Rays, and Angles Lesson 34

  2. 346 + 33,456 + P = 34,637 • 354 – D = 318 • T ÷ 8 = 4 • 72 x 6 = K • V ÷ 9 = 9 remainder 4 • 3 quarters + 5 dimes + 6 pennies =

  3. What is the perimeter of this triangle? 8. Write in words: 42,805 7cm 7cm 7cm

  4. 9. Doug went to bed at 8:30pm. He slept for an hour and 15 minutes. He woke up and read for 30 minutes and then went back to bed and slept until 6:30 am. How long did he sleep?

  5. 10. Kelly practiced her dancing 15 minutes on Saturday. Each day she practices ten minutes more than the day before. On what day will she practice for more than an hour?

  6. Lines and Line Segments

  7. Vocabulary: • point - An exact location in space, usually represented by a dot, and labeled with a capitol letter.point A A

  8. Vocabulary: • Line- a straight path in a plane that goes on forever in opposite directions • line AB or line BA A B AB

  9. Vocabulary: • line segment - a part of a line that includes two points, called endpoints, and all of the points between them • line segment AB or line segment BA A B AB

  10. Vocabulary: • ray- a part of a line, with one endpoint, that continues without end in one direction • ray CD C D CD

  11. Name the following: ray EF E F EF

  12. Name the following: K L line KL KL

  13. Name the following: line segment GH G H GH

  14. Angles

  15. Vocabulary: • angle – two rays joined together at a common vertex • angle ABC A ABC C vertex B

  16. Vocabulary: • When naming an angle, the letter naming the vertex must be in the center. • angle ABC A ABC C B vertex

  17. Name the angle: angle EFG E EFG G F

  18. Name the angle: angle TXB T TXB B X

  19. Name the angle: angle JOZ J JOZ Z O

  20. Kinds of angles: Right Angle 90 90 degrees

  21. Kinds of angles: Acute Angle- An angle that measures less than 90 Less than 90 degrees

  22. Kinds of angles: Obtuse Angle- An angle that measures more than 90 More than 90 degrees

  23. Kinds of angles: Straight Angle- An angle that measures 180 Exactly 180 degrees

  24. Name the following: obtuse angle

  25. Name the following: straightangle (or a line)

  26. Name the following: acuteangle

  27. Use the following diagram to answer each question: C A D B Name the obtuse angles. ABD ACD

  28. Use the following diagram to answer each question: C A D B Name the acute angles. CAB CDB

  29. Use the following diagram to answer each question: A C D B Name the right angle. CAB

  30. Use the following diagram to answer each question: A C D B Name the obtuse angle. DCA

  31. Use the following diagram to answer each question: A C D B Name the acute angles. CDB ABD

  32. Draw the following: obtuseangle LKR L R K

  33. Draw the following: Line segment FW W F

  34. Draw the following: Point A A

  35. Draw the following: acuteangle SYP S P Y

  36. Draw the following: Ray OP P O

  37. Draw the following: rightangle DEH D H E

  38. Draw the following: Line XB B X

  39. Online Practice http://www.toonuniversity.com/6m_angle_d.html http://www.factmonster.com/math/knowledgebox/player.html?movie=sfw41448

  40. Math Fun: Use the digits: 1, 2, 3, 4, 5, 6, 7, 8, 9 and place them in the squares. Use each number only once. The numbers must total the same when they are added horizontally and vertically. Find more than one solution.

  41. Answer: Here’s one answer. Have a friend check your other answers! 9 5 1 2 7 6 4 3 8

  42. Resources: http://mathlearnnc.sharpschool.com/UserFiles/Servers/Server_4507209/File/Instructional%20Resources/G4WW1-4.pdf • http://www.toonuniversity.com/6m_angle_d.html • http://www.factmonster.com/math/knowledgebox/player.html?movie=sfw41448

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