§8.2 Expanding Brackets

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 1

C8 Powers and Letters

Mr. Fintelman (FNL)

Wednesday May 28th

2025

Mr. Fintelman (FNL)

Wednesday November 11th

2024

Date	Wednesday May 28th 2025
Paragraph	§8.2 Expanding Brackets
Pages from the handbook	Pag. 107-109
Subject	Expanding brackets

Today is the day...

I can already…

1. … apply the order of operations when simplifying.

Prior Knowledge

Exercise 9 - Pag. 106

After this lesson, I can…

1. … expand brackets.

Goals

Calculating areas

Calculating areas

3

2+x

Calculating areas

3

2

x

Calculating areas

3

2

x

3⋅2=6

3⋅x=3x

Calculating areas

3

2+x

3⋅(2+x)=6+3x

3⋅2+3⋅x=6+3x

so...

a(b+c) = ab + ac

a(b+c) = ab + ac

Exercise 12 - Pag. 108

a(b+c) = ab + ac - Minus symbols

Exercise 15 - Pag. 109

Exercises 13 + 16 - Pag. 108-109

Worktime

You work neatly by…

1. … reading the theory (again) before asking a question to your classmate.
2. … raising a hand before asking a question to the teacher.
3. … if the teacher is busy, remember your question and move on.
   

Help:

Exercises: 12, 13, 15 and 16.

Assignments:

Pages: 107-109

Exercises: 12, 13, L2, 15, 16 and L3.

Assignments from the planning of §8.2:

Extra:

Exercises: 14 and 17.

Now I can…

1. … expand brackets.

Reflection

Exercises 13 + 16 - Pag. 108-109

Mr. Fintelman (FNL)

Wednesday November 11th

2024

Date	Monday June 2nd 2025
Paragraph	§8.2 Expanding Brackets
Pages from the handbook	Pag. 110-111
Subject	Expanding brackets

Today is the day...

I can already…

1. … expand brackets.

Prior Knowledge

Exercises 13 + 16 - Pag. 108-109

After this lesson, I can…

1. … simplify expressions that contain brackets.

Goals

Calculating areas - Last time

3

2

x

Calculating areas - Last time

3

2

x

3⋅2=6

3⋅x=3x

Calculating areas - Last time

3

2+x

3⋅(2+x)=6+3x

3⋅2+3⋅x=6+3x

so...

Calculating areas - Longer expressions

3

1+2x

3−x

Calculating areas - Longer expressions

3

1+2x

3−x

3(1+2x)

3(3−x)

3+6x

9−3x

Calculating areas - Longer expressions

3

1+2x

3−x

3(1+2x)+3(3−x)

3+6x+9−3x

12+3x

Expressions with brackets

Exercise 18 - Pag. 110

Exercises 19 (Help) + 20 (Regular) - Pag. 110-111

Solutions 19 (Help) + 20 (Regular) - Pag. 110-111

Worktime

You work neatly by…

1. … reading the theory (again) before asking a question to your classmate.
2. … raising a hand before asking a question to the teacher.
3. … if the teacher is busy, remember your question and move on.
   

Help:

Exercises: 12, 13, 15, 16, 18, 19 and L4.

Assignments:

Pages: 107-111

Exercises: 12, 13, L2, 15, 16, L3, 18, 20 and L4.

Assignments from the planning of §8.2:

Extra:

Exercises: 14, 17 and 21.

Now I can…

1. … expand brackets.
   
2. … simplify expressions that contain brackets.

Reflection

Exercise L4 - Pag. 111

Mr. Fintelman (FNL)

Wednesday November 11th

2024

Date	Wednesday June 4th 2025
Paragraph	§8.2 Expanding Brackets
Pages from the handbook	Pag. 112-113
Subject	Expanding brackets from text

Today is the day...

I can already…

1. … expand brackets.
2. … simplify expressions that contain brackets.

Prior Knowledge

Exercise L4 - Pag. 111

After this lesson, I can…

1. … simplify expressions that contain brackets from text exercises or shapes.

Goals

Exercise 22a - Pag. 111

Exercise 23 - Pag. 111

Solutions 26 - Pag. 112

Exercise 26 - Pag. 112

Worktime

You work neatly by…

1. … reading the theory (again) before asking a question to your classmate.
2. … raising a hand before asking a question to the teacher.
3. … if the teacher is busy, remember your question and move on.
   

Help:

Exercises: 12, 13, 15, 16, 18, 19, L4, 22, 23, 26 and 28.

Assignments:

Pages: 107-113

Exercises: 12, 13, L2, 15, 16, L3, 18, 20, L4, 22, 23, 26 and 28.

Assignments from the planning of §8.2:

Extra:

Exercises: 14, 17, 21, 23 and 29.

Now I can…

1. … expand brackets.
   
2. … simplify expressions that contain brackets.
3. … simplify expressions that contain brackets from text exercises or shapes.

Reflection

Exercise 22b - Pag. 111