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L.O.1 To be able to recall the 9 times table and use it to derive associated number facts

L.O.1 To be able to recall the 9 times table and use it to derive associated number facts. 9. 9 90. Q. Can we use our knowledge of the 9 times table to say the 90 times table?. 9 90 900. . 1 9 2 8 3

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L.O.1 To be able to recall the 9 times table and use it to derive associated number facts

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  1. L.O.1 To be able to recall the 9 times table and use it to derive associated number facts

  2. 9

  3. 9 90 Q. Can we use our knowledge of the 9 times table to say the 90 times table?

  4. 9 90 900

  5. . 1 9 2 8 3 7 4 6 5

  6. 9 81 1 18 9 2 72 8 x9 clock 3 27 63 7 4 36 6 5 54 45 .

  7. 9 81 1 18 9 2 72 8 x9 clock 3 27 63 7 4 36 6 5 54 45 Q. How can we use our x9 clock to work out 40 x 9?

  8. 9 81 1 18 9 2 72 8 x9 clock 3 27 63 7 4 36 6 5 54 45 The outer number divided by the inner one is always 9.

  9. 9 81 1 18 9 2 72 8 x9 clock 3 27 63 7 4 36 6 5 54 45 Q. How can we use our x9 clock to work out 540 ÷ 9?

  10. L.O.2 To understand and use angle measure in degrees, To be able to identify and estimate acute and obtuse angles To be able to calculate angles in a straight line.

  11. REMEMBER… An ANGLE is an amount of TURN. Q. What unit do we measure angles in?

  12. Q. How many degrees are there in a right angle? We use the symbol °to show degrees. like this 36° or 178°or 317°.

  13. What is the size of this angle? What is it called?

  14. Q. What is the name of an angle smaller than 90°?

  15. An angle less than 90° is called an acute angle. Copy into your book: Angles< 90° are called acute angles

  16. START . FINISH The horizontal line on the right has been turned through 1 right angle or 90°.

  17. Estimate the size of these angles.

  18. Estimate the size of these angles.

  19. What do we know about A + B? A B A B A + B are called COMPLEMENTARY angles.

  20. Q. What size are these angles?

  21. Q. What size is this angle now?

  22. The angle is 180° and is made up of 2 right angles. Copy into your books: Straight line = 2 right angles = 180°

  23. Complementary angles on a straight line are called : obtuse acute Copy into your book: 90° < Angles < 180° are called obtuse angles.

  24. Oral work with 2D shapes.

  25. By the end of the lesson children should be able to: Know that an angle less than 90° is acute; an angle between 90° and 180° is obtuse. Begin to identify and estimate acute, obtuse and right angles. Identify acute, obtuse and right angles in 2D shapes. Calculate angles in a straight line.

  26. L.O.1 To be able to say whether angles are acute, obtuse or right angles. To be able to estimate and order angles.

  27. 1 Look at each of these angles. Decide if each is Aacute, O obtuse or Rright-angled. 2 3 5 4 6 7 8

  28. Q. What could we use in the classroom to check that an angle is a right angle?

  29. Q. How many angles has this triangle? A Q. What is the name of this angle? Q. What size is this angle?

  30. We are going to identify each angle and write in its letter. A A B C D E F G H I

  31. Now we shall estimate to put the letters in order of size. A A B C D E F G H I How can we be sure?

  32. L.O.2 To be able to calculate angles in a straight line To be able to use a protractor to measure and draw acute and obtuse angles to 5°

  33. We have four strips of card. They are at right angles. We are going to move the red one !

  34. . Q. How many degrees has the red strip turned?

  35. . Q. How many degrees has the strip turned now ?

  36. . Q. How many degrees has the strip turned?

  37. . The strip has moved all the way round to where it started. How many degrees has it turned?

  38. A whole turn = 4 right angles = 360°

  39. REMEMBER…. It is possible to turn through more than 360°

  40. LOOK… Q. How many degrees has the red strip turned now ?

  41. The circle has 10equally spaced points on its circumference. Q. If the arrow moves around all ten points and ends back where it started how many degrees has it turned through? Q. If the arrow moves to the next point on the circumference how many degrees has it turned through? What is the angle of turn?

  42. The circle has 10equally spaced points on its circumference. Q. If the arrow moves around all ten points and ends back where it started how many degrees has it turned through? 360° Q. If the arrow moves to the next point on the circumference how many degrees has it turned through? 36° The angle of turn if the arrowmoves to the next point is 360° ÷ 10 =36°

  43. The line is a RADIUS. It connects the centre of the circle in a straight line to a point on the circumference. Where should I draw another radius to make an angle of 72°?

  44. Either of the dotted lines will give an angle of 72°. 36° x 2 = 72° One is clockwise from our original radius and the other is anti-clockwise. 72° 72°

  45. Where should I draw another radius to make an angle of 108°?

  46. Either of the dotted lines will give an angle of 108° . 36° x 3 = 108° One is clockwise from our original radius and the other is anti-clockwise. 108° 108°

  47. Where should I draw another radius to make an angle of 144°?

  48. Either of the dotted lines will give an angle of 144° . 36° x 4 = 144° One is clockwise from our original radius and the other is anti-clockwise. 144° 144°

  49. This circle has 9 equally spaced points on its circumference. Q. If the arrow moves to the next point on the circumference how many degrees has it moved through? Q. What is the angle of turn?

  50. This circle has 9 equally spaced points on its circumference. Q. If the arrow moves to the nextpoint on the circumference how many degrees has it moved through? 40° Q. The angle of turn if the arrow moves to the next point is 360° ÷ 9 = 40°

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