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Yr 9 Unit4 Week 3 - Lesson 1

Yr 9 Unit4 Week 3 - Lesson 1
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MathematicsLower Secondary (Key Stage 3)

This lesson contains 46 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 50 min

Items in this lesson

Yr 9 Unit4 Week 3 - Lesson 1

Slide 1 - Slide

Slide 2 - Slide

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Slide

Starter
Calculate the following expressions:

          
   3 + 4 x 5
   3 x 4 + 5
   3 x (4 + 5)
 3 x 4 + 4 x 5
   18 ÷ 2 + 6
   18 ÷ 6 - 2
   18 ÷ (3 + 6)
  18 ÷ 3  + 13
timer
4:00

Slide 6 - Slide

Starter
Calculate the following expressions:

          
   3 + 4 x 5
   3 x 4 + 5
   3 x (4 + 5)
 3 x 4 + 4 x 5
          23
          17
          27
          32
   18 ÷ 2 + 6
   18 ÷ 6 - 2
  18 ÷ (3 + 6)
  18 ÷ 3  + 13

Slide 7 - Slide

Starter
Calculate the following expressions:

          
   3 + 4 x 5
    3 x 4 + 5
   3 x (4 + 5)
 3 x 4 + 4 x 5
          23
          17
          27
         32
   18 ÷ 2 + 6
   18 ÷ 6 - 2
  18 ÷ (3 + 6)
  18 ÷ 3  + 13
          15
            1
           2
          19

Slide 8 - Slide

Calculate a + b given a = 4 and b = 6
A
4
B
6
C
10
D
2

Slide 9 - Quiz

Calculate 2a + b given a = 4 and b = 6
A
6
B
8
C
12
D
14

Slide 10 - Quiz

Calculate a + b given a = -4 and b = 6
A
2
B
10
C
6
D
-4

Slide 11 - Quiz

Calculate 2a + b given a = -4 and b = 6
A
-2
B
2
C
-14
D
14

Slide 12 - Quiz

Calculate a + b given a = -4 and b = -6
A
10
B
-10
C
2
D
-2

Slide 13 - Quiz

Calculate 2a + b given a = -4 and b = -6
A
-2
B
2
C
-14
D
14

Slide 14 - Quiz

Calculate a + b given a = 4 and b = -6
A
10
B
-10
C
2
D
-2

Slide 15 - Quiz

Calculate 2a + b given a = 4 and b = -6
A
-2
B
2
C
-8
D
8

Slide 16 - Quiz

DO NOW
TITLE - Week3  Lesson 1  DO NOW

INSTRUCTIONS - Write the selected questions into your exercise book and then answer them.

QUESTIONS - All the left hand side and top right

Slide 17 - Slide

timer
6:00

Slide 18 - Slide

Slide 19 - Slide

Slide 20 - Slide

Talk Task Example 1
  Given c = 2x - 9 and e = 4x, find c + e.

Slide 21 - Slide

Talk Task Example 1
  Given c = 2x - 9 and e = 4x, find c + e.

              c + e = 2x - 9 + 4x

Slide 22 - Slide

Talk Task Example 1
  Given c = 2x - 9 and e = 4x, find c + e.

              c + e = 2x - 9 + 4x

                        = 2x + 4x - 9 

Slide 23 - Slide

Talk Task Example 1
  Given c = 2x - 9 and e = 4x, find c + e.

              c + e = 2x - 9 + 4x

                        = 2x + 4x - 9 

                        = 6x - 9

Slide 24 - Slide

Talk Task Example 2
  Given a = 3x + 4 and f = 7 - 2x, find a + f.

              a + f = 3x + 4 + 7 - 2x

                        = 3x - 2x + 4 + 7 

                        = x + 11

Slide 25 - Slide

Talk Task Example 3
  Given g = -5 - 3x and h = 3(3x + 2), find g + h.

              g + h = -5 - 3x + 9x + 6

                        = -3x + 9x - 5 + 6 

                        = 9x - 3x + 6 - 5  = 6x + 1

Slide 26 - Slide

Exercise
  Given c = 5x + 17 and d = 10 + 2x, find:
      
   1.  2c 
   2.  3d
   3.  c + d
   4.  2c + d
   5.   2c + 3d

Slide 27 - Slide

Exercise
  Given c = 5x + 17 and d = 10 + 2x, find 2c.

              2c = c + c  

                   = 5x + 17 + 5x + 17

                   = 5x + 5x + 17 + 17 = 10x + 34

                        = 2x + x - 9 - 10   = 3x - 19

Slide 28 - Slide

Exercise
  Given c = 5x + 17 and d = 10 + 2x, find 3d.

              3d = d + d + d  

                   = 10 + 2x + 10 + 2x + 10 + 2x

                   = 2x + 2x + 2x + 10 + 10 + 10 = 6x + 30

                        = 2x + x - 9 - 10   = 3x - 19

Slide 29 - Slide

Exercise
  Given c = 5x + 17 and d = 10 + 2x, find c + d.

               c + d = 5x + 17 + 10 + 2x

                         = 5x + 2x + 17 + 10   

                         = 7x + 27

Slide 30 - Slide

Exercise
  Given c = 5x + 17 and d = 10 + 2x, find 2c + d.

               2c + d = 10x + 34 + 10 + 2x

                         = 10x + 2x + 34 + 10   

                         = 12x + 44

Slide 31 - Slide

Exercise
  Given c = 5x + 17 and d = 10 + 2x, find 2c + 3d.

               2c + 3d = 10x + 34 + 30 + 6x

                         = 10x + 6x + 34 + 30   

                         = 16x + 64

Slide 32 - Slide

NEW LEARNING
TITLE  Week 3 - Lesson 1 - NEW LEARNING

INSTRUCTIONS - Write down the following notes in your exercise book.

Slide 33 - Slide

Slide 34 - Slide

Slide 35 - Slide

If a = x + 2 and b = 3x, what is a + b in terms of x?
A
3x + 2
B
4x + 2
C
5x
D
3x​2​​+2

Slide 36 - Quiz

Slide 37 - Slide

If a = x + 2 and b = 3x, what is b - a in terms of x?
A
2x + 2
B
5
C
2x - 2
D
x

Slide 38 - Quiz

Slide 39 - Slide

If g = 2f + 1 and h = g + 2, which of these is definitely true?
A
h = f
B
h = 4f + 3
C
h = 2f + 2
D
h = 2f + 3

Slide 40 - Quiz

Slide 41 - Slide

Slide 42 - Slide

Slide 43 - Slide

Slide 44 - Slide

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Slide 46 - Slide

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