1. Created by Mr.Lafferty Math Dept
Angles
Level E
Revising Basic Angles
Naming Angles
Calculating Missing angles
Angles in a Triangle
Corresponding Angles
Alternate Angles
30-Nov-18
Created by Mr.Lafferty Math Dept

2. Created by Mr.Lafferty Math Dept
Starter Questions
Level E
Q1. Convert to the 24 hour clock.
(a) 7:25 pm
(b) 6:50 am
Q2. Write down the type of angle
that is less than 90 deg.
Q3. Calculate
Q4. Round the following to nearest 1000.
(a) 12,501
(b) 369,765
30-Nov-18
Created by Mr.Lafferty Math Dept

3. Created by Mr.Lafferty Math Dept
Type of Angles
Level E
Learning Intention
Success Criteria
To revise Type of Angles from level D.
To be able to identify acute, right-angle, obtuse, straight line and reflex angles.
30-Nov-18
Created by Mr.Lafferty Math Dept

4. Created by Mr.Lafferty Math Dept
Type of Angles
Level E
Horizontal
Vertical
Acute
less than 90o
Obtuse
Between 90o – 180o
Right - Angle
exactly 90o
Straight Line Angle
exactly 180o
reflex
over 180o less than 360o
30-Nov-18
Created by Mr.Lafferty Math Dept

5. Created by Mr.Lafferty Math Dept
Type of Angles
Level E
Now try
Ch12 (page 146)
Exercise 1
30-Nov-18
Created by Mr.Lafferty Math Dept

6. Created by Mr.Lafferty Math Dept
Starter Questions
Level E
Q1. Convert to the 12 hour clock.
(a) 17:15
(b) 05:40
Q2. Write down 2 numbers that add to give 8 and
multiply to give 15.
Q3. Calculate 5.65 – 1.3
Q4. Round the following to nearest 100.
(a) 13,551
(b) 369,449
30-Nov-18
Created by Mr.Lafferty Math Dept

7. Created by Mr.Lafferty Math Dept
Naming Angles
Level E
Learning Intention
Success Criteria
To explain how we name angles by THREE capital letters with the angle sign. The middle letter being where the angle is.
To be able to name an angle.
Understand the difference between the type of angle and the name of an angle.
30-Nov-18
Created by Mr.Lafferty Math Dept

8. Created by Mr.Lafferty Math Dept
Naming Angles
Level E A X B Y C Z
Type of angle is acute
Type of angle is obtuse
Name of angle is ∠ ABC
Name of angle is ∠ ZYX
MIDDLE LETTER IS ALWAYS WHERE THE ANGLE IS
ALWAYS 3 CAPITAL LETTERS
30-Nov-18
Created by Mr.Lafferty Math Dept

9. Created by Mr.Lafferty Math Dept
Naming Angles
Level E
Now try
Ch12 (page 147)
Exercise 2
30-Nov-18
Created by Mr.Lafferty Math Dept

10. Created by Mr.Lafferty Math Dept
Starter Questions
Level E
30-Nov-18
Created by Mr.Lafferty Math Dept

11. Created by Mr.Lafferty Math Dept
Find Missing Angles
Level E
Learning Intention
Success Criteria
To calculate missing angle give all other angles.
To know 360o in a circle.
Find missing angle given all other angles.
30-Nov-18
Created by Mr.Lafferty Math Dept

12. Find Missing Angle www.mathsrevision.com 55o 115o 146o 145o 146o 65o
Level E
65o
35o
55o
115o
Two angles making a
straight line add to 180o
(Supplementary angles)
Two angles making a
right angle add to 90o
(Complementary angles)
120o
95o
146o
34o
146o
145o
angles opposite each other
at a cross are equal.
Angles round a point
always add up to 360o
30-Nov-18
Created by Mr.Lafferty Math Dept

13. Created by Mr.Lafferty Math Dept
Find Missing Angle
Level E
Now try
Ch12 (page 149)
Exercise 3
30-Nov-18
Created by Mr.Lafferty Math Dept

14. Level E Starter Questionsxo
30-Nov-18
Created by Mr.Lafferty Math Dept

15. Sum of Angles in a Triangle
Level E
Learning Intention
Success Criteria
To show that all the angles
in a triangle sum to 180o.
To know all angles in a triangle add to 180o.
Use knowledge to solve problems.
30-Nov-18
Created by Mr.Lafferty Math Dept

16. www.mathsrevision.com To determine the angle sum of any Triangle
Level E
Cut off corners 
Cut off corners 
Cut off corners 
30-Nov-18
Created by Mr.Lafferty Math Dept

17. www.mathsrevision.com angle sum of any Triangle Level E
All angles in a triangle
ALWAYS
added up to180o
180o
30-Nov-18
Created by Mr.Lafferty Math Dept

18. Sum of Angles in a Triangle
Level E
Copy out the following triangles and find the missing angles.
50o xo
38o
87o xo
32o xo xo
Remember all the angles add up to 180o
30-Nov-18
Created by Mr.Lafferty Math Dept

19. Sum of Angles in a Triangle
Level E
Now try
Ch12 (page 151)
Exercise 4
starter at Q3
30-Nov-18
Created by Mr.Lafferty Math Dept

20. Created by Mr.Lafferty Math Dept
Starter Questions
Level E
Q1. Solve the equation below
Q2. Find two numbers that multiply add to give 18
and subtract to give 3.
Q3. Find the average and range of the numbers below
2,8,8,10
Q4. Find
30-Nov-18
Created by Mr.Lafferty Math Dept

21. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E
Learning Intention
Success Criteria
1. To explain the term corresponding angles and show how we use the property to solve problems.
To understand the term corresponding angles.
2. To be able to use property to solve problems.
30-Nov-18
Created by Mr.Lafferty Math Dept

22. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E
Which angles are equal?
30-Nov-18
Created by Mr.Lafferty Math Dept

23. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E
Which angles are equal?
30-Nov-18
Created by Mr.Lafferty Math Dept

24. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E
Which angles are equal to the shaded angle?
30-Nov-18
Created by Mr.Lafferty Math Dept

25. Which angles are equal to the shaded angle?
Level E
Which angles are equal to the shaded angle?
30-Nov-18
Created by Mr.Lafferty Math Dept

26. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E
look for
shapes
30-Nov-18
Created by Mr.Lafferty Math Dept

27. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E
What is the value of letter x?
120
120 x
30-Nov-18
Created by Mr.Lafferty Math Dept

28. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E
100
What is the value of letter a?
100 a
30-Nov-18
Created by Mr.Lafferty Math Dept

29. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E b 48 48
What is the value of letter b?
30-Nov-18
Created by Mr.Lafferty Math Dept

30. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E
What is the value of letter c?
110
110 c
30-Nov-18
Created by Mr.Lafferty Math Dept

31. What are the values of letters a and b?
Angles
Corresponding Angles
Level E 70 70
What are the values of letters a and b? b
110 a
30-Nov-18
Created by Mr.Lafferty Math Dept

32. Created by Mr.Lafferty Math Dept
Angles
Corresponding Angles
Level E
115 65 65
What are the values of
the missing angles?
115
30-Nov-18
Created by Mr.Lafferty Math Dept

33. What are the values of the missing angles?
Corresponding Angles
Level E
123 57 57
What are the values of the missing angles?
123
30-Nov-18
Created by Mr.Lafferty Math Dept

34. Angles Now try Exercise 5 Ch12 (page 154) www.mathsrevision.com
Level E
Corresponding Angles
Now try Exercise 5 Ch12 (page 154)
30-Nov-18
Created by Mr.Lafferty Math Dept

35. Created by Mr.Lafferty Math Dept
Starter Questions
Level E
Q1. Solve the equation below
Q2. Find two numbers that multiply to give 48
and divide to give 3.
119o
Q3. Find missing angles bo ao
30-Nov-18
Created by Mr.Lafferty Math Dept

36. Created by Mr.Lafferty Math Dept
Angles
Alternate Angles
Level E
Learning Intention
Success Criteria
1. To explain the term alternate angles and show how we use the property to solve problems.
To understand the term alternate angles.
2. To be able to use property to solve problems.
30-Nov-18
Created by Mr.Lafferty Math Dept

37. Created by Mr.Lafferty Math Dept
Angles
Alternate Angles
Level E
Look for
- Z shapes
= equal angles
30-Nov-18
Created by Mr.Lafferty Math Dept

38. Created by Mr.Lafferty Math Dept
Angles
Alternate Angles
Level E
Find the value of a ? 35 35 a
30-Nov-18
Created by Mr.Lafferty Math Dept

39. Created by Mr.Lafferty Math Dept
Angles
Alternate Angles
Level E b 43
Find the value of b ? 43
30-Nov-18
Created by Mr.Lafferty Math Dept

40. Created by Mr.Lafferty Math Dept
Angles
Alternate Angles
Level E
Find the value of c ? 33 33 c
30-Nov-18
Created by Mr.Lafferty Math Dept

41. Created by Mr.Lafferty Math Dept
Angles
Alternate Angles
Level E
123
Find the value of d ?
123 d
30-Nov-18
Created by Mr.Lafferty Math Dept

42. Created by Mr.Lafferty Math Dept
Angles
Alternate Angles
Level E 50
Find the value
a and b ? a
130 b 50
30-Nov-18
Created by Mr.Lafferty Math Dept

43. Created by Mr.Lafferty Math Dept
Angles
Alternate Angles
Level E
135
Find the value
of a and b ? c 45 45 d
30-Nov-18
Created by Mr.Lafferty Math Dept

44. Created by Mr.Lafferty Math Dept
Angles
Alternate Angles 60 c
120
Find the value
a, b and c ?
120 b 60 a
30-Nov-18
Created by Mr.Lafferty Math Dept

45. Angles Now try Exercise 6 Ch12 (page 157) www.mathsrevision.com
Level E
Alternate Angles
Now try Exercise 6 Ch12 (page 157)
30-Nov-18
Created by Mr.Lafferty Math Dept