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