Like terms (t1b)

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 1

Simplifying

March 20th, 2023

t1

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Schedule

• Reading                                                              5 min
• Optical illusion                                                5 min
• Review quiz questions                              15 min
   Discuss homework together
• Simplifying                                                       5 min
  
• (Silent) practice                                          20 min
• Extra examples                                             5 min
• Gooseboard!                                                20 min

Timekeeper?

Optical illusion

Optical illusion

Review question 1:
Simplify.

3a⋅5a=...

1. 15a
2. 2a
3. 15a​2​​
4. Cannot be simplified

Review question 2:
Simplify.

x+x+x+x+x=

1. 4x
2. 5x
3. x + 5
4. Huh?

Review question 3:
Simplify.

4a⋅6b⋅1.5c=...

1. 11.5abc
2. 24ab
3. 9bc
4. 36abc

Review question 4:
Simplify.

5x⋅−2y⋅−z=...

1. -10xyz
2. -7xyz
3. 10xyz
4. Cannot be simplified

Review question 5:
Simplify.

2x⋅9y−3xy=...

1. 15xy
2. 15
3. 8xy
4. Cannot be simplified

Check homework together

Chapter 6

Choose a route in 53 - 65

Check homework together

Chapter 6

Choose a route in 53 - 65

Check homework together

Chapter 6

Choose a route in 53 - 65

Check homework together

Chapter 6

Choose a route in 53 - 65

Intended Learning Outcomes

At the end of the lesson you can...

• Simplify more letters when adding like terms

Chapter 6

Choose a route in 53 - 65

Tips

Chapter 6

Choose a route in 53 - 65

Tips

Chapter 6

Choose a route in 53 - 65

Let's try...

Chapter 6

Choose a route in 53 - 65

Practice: 5 + 15 min

Chapter 6

Choose a route in 53 - 65

Tips

                                                             -->

Rules to remember

1. Use BODMAS!

2. Multiplying? Just 'stick' numbers to numbers, letters to letters

3. Adding/subtracting? Only like terms!

1. 

2. 

3. 

Rules to remember

1. Use BODMAS!

2. Multiplying? Just 'stick' numbers to numbers, letters to letters

3. Adding/subtracting? Only like terms!

1.

2.

3. 

5x+8x⋅3y=

2a⋅−3b⋅−​2​​1​​c=

5p−3q+7p−4q​2​​=

Simplify.

5xy−9xy=...

1. -4xy
2. -4
3. 4xy
4. Cannot be simplified

Simplify.

5xy−9y=...

1. -4x
2. -4
3. -4xy
4. Cannot be simplified

Simplify.

​2​​1​​abc−3abc⋅abc=...

1. −2​2​​1​​abcabc
2. −2​2​​1​​a​2​​b​2​​c​2​​
3. ​2​​1​​abc−3a​2​​b​2​​c​2​​
4. Cannot be simplified

Letters: area & perimeter

A rectangle has:
a length of 4x
a width of 6y
What is the perimeter?

1. 10xy
2. 24xy
3. 4x + 6y
4. 8x + 12y

A rectangle has:
a length of 4x
a width of 6y
What is the area?

1. 10xy
2. 24xy
3. 4x + 6y
4. 8x + 12y

Gooseboard!