Successfully reported this slideshow.
Find out about Triangles
Adapted from :  Burns, M. (1994) The Greedy Triangle.  USA
What are the different parts of a triangle?   BASE
<ul><li>HEI GHT </li></ul>What are the different parts of a triangle?
Finding the base and height of a triangle
The different types of triangles <ul><li>Right Angled Triangles </li></ul><ul><li>Acute Angled Triangles </li></ul><ul><li...
Similarities <ul><li>All of them have 3 sides and 3 angles </li></ul>Differences <ul><li>Right Angled Triangles  -  One ha...
 
Let’s identify the base and height of a right angled triangle
 
 
Let’s identify the base and height of n acute angled triangle
 
 
Let’s identify the base and height of an obtuse angled triangle
 
 
Think-Pair-Share <ul><li>Draw a straight line on your Mini Whiteboard and label it  base. </li></ul><ul><li>base </li></ul>
Think-Pair-Share <ul><li>Mark a point on top and within the length  </li></ul><ul><li>of the line.  </li></ul><ul><li>. </...
Think-Pair-Share <ul><li>3. From the dot, extend a line to join to each side at end of the first line.  </li></ul><ul><li>...
Think-Pair-Share <ul><li>4. Pass it to your partner and get him/her to identify the height of the given triangle. </li></u...
Think-Pair-Share <ul><li>Switch the role with your partner and repeat step1 to 6 </li></ul><ul><li>  </li></ul><ul><li>  <...
Level 2… <ul><li>Draw another straight line on the Mini Whiteboard and label it  base. </li></ul><ul><li>base </li></ul>
Level 2… <ul><li>2. Mark another point on top but not within (outside) the length of the line. </li></ul><ul><li>. </li></...
Level 2… <ul><li>3.  From the dot, extend a line to join to  </li></ul><ul><li>  each side at end of the first line.  </li...
Level 2… <ul><li>3.  From the dot, extend a line to join to  </li></ul><ul><li>  each side at end of the first line.  </li...
Level 2… <ul><li>Pass the triangle you have drawn to  </li></ul><ul><li>your partner and he/she will repeat the step 5 and...
Upcoming SlideShare
Loading in …5
×

Lesson proper for base and height

2,741 views

Published on

  • Be the first to comment

  • Be the first to like this

Lesson proper for base and height

  1. 1. Find out about Triangles
  2. 2. Adapted from : Burns, M. (1994) The Greedy Triangle. USA
  3. 3. What are the different parts of a triangle? BASE
  4. 4. <ul><li>HEI GHT </li></ul>What are the different parts of a triangle?
  5. 5. Finding the base and height of a triangle
  6. 6. The different types of triangles <ul><li>Right Angled Triangles </li></ul><ul><li>Acute Angled Triangles </li></ul><ul><li>Obtuse Angled Triangles </li></ul>Right angle
  7. 7. Similarities <ul><li>All of them have 3 sides and 3 angles </li></ul>Differences <ul><li>Right Angled Triangles - One has a right angle and two angles less than 90° </li></ul><ul><li>Acute Angled Triangles – One has three angles less than 90 ° </li></ul><ul><li>Obtuse Angled Triangles – One has an angle greater than 90 ° and two angles less than 90 ° </li></ul>
  8. 9. Let’s identify the base and height of a right angled triangle
  9. 12. Let’s identify the base and height of n acute angled triangle
  10. 15. Let’s identify the base and height of an obtuse angled triangle
  11. 18. Think-Pair-Share <ul><li>Draw a straight line on your Mini Whiteboard and label it base. </li></ul><ul><li>base </li></ul>
  12. 19. Think-Pair-Share <ul><li>Mark a point on top and within the length </li></ul><ul><li>of the line. </li></ul><ul><li>. </li></ul><ul><li>base </li></ul><ul><li> </li></ul>
  13. 20. Think-Pair-Share <ul><li>3. From the dot, extend a line to join to each side at end of the first line. </li></ul><ul><li>. </li></ul><ul><li> </li></ul>
  14. 21. Think-Pair-Share <ul><li>4. Pass it to your partner and get him/her to identify the height of the given triangle. </li></ul><ul><li>. </li></ul><ul><li> </li></ul>
  15. 22. Think-Pair-Share <ul><li>Switch the role with your partner and repeat step1 to 6 </li></ul><ul><li> </li></ul><ul><li> </li></ul>
  16. 23. Level 2… <ul><li>Draw another straight line on the Mini Whiteboard and label it base. </li></ul><ul><li>base </li></ul>
  17. 24. Level 2… <ul><li>2. Mark another point on top but not within (outside) the length of the line. </li></ul><ul><li>. </li></ul><ul><li>base </li></ul>
  18. 25. Level 2… <ul><li>3. From the dot, extend a line to join to </li></ul><ul><li> each side at end of the first line. </li></ul><ul><li>. </li></ul><ul><li>base </li></ul>
  19. 26. Level 2… <ul><li>3. From the dot, extend a line to join to </li></ul><ul><li> each side at end of the first line. </li></ul><ul><li>. </li></ul><ul><li>base </li></ul>
  20. 27. Level 2… <ul><li>Pass the triangle you have drawn to </li></ul><ul><li>your partner and he/she will repeat the step 5 and 6 as in the previous triangle. </li></ul><ul><li>base </li></ul>

×