Equal expressions + Terms and coefficients

Good morning!
Schedule: 
  • Learning goals 
  • Vocabulary 
  • Notation
  • Homework/worksheets
  • Terms and coefficients 
  • Equal expressions 
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Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 2

This lesson contains 22 slides, with interactive quiz and text slides.

Items in this lesson

Good morning!
Schedule: 
  • Learning goals 
  • Vocabulary 
  • Notation
  • Homework/worksheets
  • Terms and coefficients 
  • Equal expressions 

Slide 1 - Slide

Learning goals 
At the end of this lesson I can:

  • Use the correct key words to describe expressions
  • Write equal algebraic expressions with fewer terms

Slide 2 - Slide

Vocabulary
Ex: sum = +

Slide 3 - Mind map

Notation
- Use ⋅ for multiplication not x when working with algebra
Why? 


Slide 4 - Slide

Notation
- Use ⋅ for multiplication not x when working with algebra
Why? 

-          x ⋅ 2 = 2⋅x =2x
Why?

Slide 5 - Slide

Homework check

Slide 6 - Slide

Starter
Consider the expression: 

x - 2y + 8

a) Write down the terms of this expression
b) Write down the constant(s) of this expression
c) Write down the coefficients of x and y

Slide 7 - Slide

Starter
Consider the expression: 

x+ 2x + 3y + y - 4x + 3

d) Write down the  like terms of this expression
e) Write down an equal algebraic expression with fewer terms

Slide 8 - Slide

Starter
Consider the expression: 

x - 2y + 8

a) x,  -2y,    8  are the terms
b) The constant is 8
c) The coefficient of x  is 1, the coefficient of y is -2

Slide 9 - Slide

Starter
Consider the expression: 

x+ 2x + 3y + y - 4x + 3

d) 2x and -4x are like terms
3y and y are like terms
e) x2x + 3y + y -4x + 3 = -2x + 4y + 3

Slide 10 - Slide

What to do
Open this LessonUp on your device. 
Work on the slides with the appropriate color: 

- Got the question right                               I really want a challenge!
- Got the question right                               I think a bit more practice will help me!
- Got the question incorrect/correct     I think more practice will help me! I                                                                                         would like some more help. 

Slide 11 - Slide

Equivalent expressions
1 ball



b balls

Slide 12 - Slide

Example 1
3b + 5 - b -1


+
-
-

Slide 13 - Slide

Example 1
3b + 5 - b -1 = 


= 2b + 4
+

Slide 14 - Slide

Example 2
2b + 1 + 3b + 4 - b = 





+
+
+
-

Slide 15 - Slide

Example 2
2b + 1 + 3b + 4 - b = 5b +5





+

Slide 16 - Slide

Example 3
x + 3y - 2x2 + 1 +3x - y = 


Slide 17 - Slide

Example 3
x + 3y - 2x2 + 1 +3x - y = 

x + 3x + 3y -y -2x+ 1 = 


Slide 18 - Slide

Example 3
x + 3y - 2x2 + 1 +3x - y = 

x + 3x + 3y -y -2x+ 1 = 

4x + 2y -2x2 + 1 =

Slide 19 - Slide

Extra practice + help
p. 163-165: 8F          1, 2, 3, 5     

Slide 20 - Slide

Extra practice 
p. 163-165: 8F            4, 5, 6, 
p. 166: 8F                     Discussion 

Slide 21 - Slide

Challenging work 
Go to ManageBac: 
Files: 
Unit 3: 
"Equivalent expressions worksheet" 

"Forming equations worksheet in depth"

Slide 22 - Slide