Secondary 1 na geography e learning (7th august 2012)

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Secondary 1 na geography e learning (7th august 2012)

  1. 1. Secondary 1 NA Geography E-LEARNING 7TH AUGUST 2012
  2. 2. InstructionsYou must view this powerpoint slides as a Slide Show.You need to have your textbook with you and be prepared to highlight notes.You need to log in to your LMS to access the questions.
  3. 3. For today’s session…You will be recapping on what you learnt for atlas (page 35)You will be recapping on how to read scale on a map.You will be learning some basic map skills  Eastings and northings  Four-figure grid references  Six-figure grid references  Finding directions on a map
  4. 4. Question 1You are to revise what you learnt for atlas on page 35 – 39 before you do it.You may refer to the textbook while you’re doing the question.
  5. 5. Recap on Scale TEXTBOOK PAGE 31
  6. 6. What is scale? (page 31) The scale of a map shows therelationship between a length on a map and the actual distance itrepresents on the Earth’s surface. (Paragraph 1, line 2)
  7. 7. Why do we need a scale when drawing a map? Impossible for us to draw a map the same size as the actual area.
  8. 8. How scale is shown on a map (page 31)Statement scale Line scale1 cm represents 1 km
  9. 9. Large-scale map VS Small-scale mapLarge-scale map Small-scale mapSmaller area of Earth’s Larger area of Earth’s surface surfaceMore details Less details
  10. 10. Small-scale map Large-scale map
  11. 11. Chapter 5: Interpreting Topographical mapsTURN TO PAGE 45 OF YOUR TEXTBOOK
  12. 12. As you are going through this,please highlight in your textbook.
  13. 13. What is the definition of a topographical map?Read the paragraph on page 45A topographical map is an accurate large-scale maps that gives details of the physical and human features in an area.
  14. 14. What are the uses of a topographical map?You can find the answer on page 45You use a topographical map to locate specific places, as well as to understand physical and human environment.
  15. 15. Eastings and Northings PAGE 46 OF YOUR TEXTBOOK
  16. 16. Eastings VS NorthingsRead paragraph 1and 2 of page 46
  17. 17. Eastings VS NorthingsThe numbers here are increasing towardsNorth direction, thus they are called Northings. The numbers here areincreasing towards East direction, thus they are called Eastings.
  18. 18. Four figure grid reference PAGE 46 OF YOUR TEXTBOOK
  19. 19. What is four figure grid reference?It is a set of four numbers that is made up of Northings and Eastings.You should read EASTINGS FIRST followed by NORTHINGS.Remember: E comes earlier than N.Eg. 0450 – 04 is the easting and 50 is the northing.
  20. 20. Four figure grid reference Step 1: For example, I want to identify the four figure grid reference of this box.
  21. 21. Four figure grid reference Step 2: Draw a cross at the BOTTOM LEFT CORNER of the box.
  22. 22. Four figure grid reference Read the corresponding grid lines. Should your answer be 0657 or 5706?
  23. 23. If you said 0657… Give yourself a pat onyour back. You’re right. IF you got this wrong, please go back to slide 19 and revise.
  24. 24. Six figure grid reference PAGE 47 OF YOUR TEXTBOOK
  25. 25. What is six figure grid reference?Six figure reference is like a more detailed version of a four figure grid reference.As the name suggests, there are SIX numbers. 06 57 The dotted boxes refers to thespecial numbers that give theEXACT position of the feature you Easting Northingwant to find in the map.
  26. 26. Six figure grid reference Step 1: For example, I want to identify the six figure grid reference of this box.
  27. 27. Six figure grid reference Step 2: Zoom into that particular box
  28. 28. You would know from Six figure grid referenceearlier that thefour figure grid reference is 00657 . Now we 9 need to find the 2 special 8 numbers. Step 2: Divide Step 1: Draw the 7 the grid square 6 mid points as into ten equal 5 shown. 4 parts. 3 2 1 0 1 2 3 4 5 6 7 8 9 0
  29. 29. Six figure grid reference 0 9 8 7Look at where your 6 feature coincides with the numbers 5 you have drawn. 4 Estimate 3 somewhere in the middle of the 2 feature will do. 1 0 1 2 3 4 5 6 7 8 9 0
  30. 30. The six figure grid reference for Solis Lake is… 063574 Northing Easting Special Special number that number that gives exact gives exact location. location.
  31. 31. You are done!NOW YOU NEED TO ATTEMPT THE QUIZ ON THE LMS. YOUCAN REFER TO THE SLIDES TO HELP YOU.

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