Simplifying (expanding brackets)

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 2

Good morning!

Schedule: 

• Learning goals 
• Starter + expanding brackets
• Work
• Algebra colors!

Learning goals 

At the end of this lesson I can:

• Expand brackets to simplify equations or expressions

Starter

Do this starter in your notebook alone. 

1. simplify the following expressions:

a)     3(a + 2)

b)    - (5 - y)

c)    -4(3 + 2x) + 2

Starter

Do this starter in your notebook alone. 

1. simplify the following expressions:

a)     3(a + 2) = 3a + 6

b)    - (5 - y) = 15 + y

c)    -4(3 + 2x) + 2 = -12 - 8x

What to do

Open this LessonUp on your device. 

Work on the slide with the appropriate color: 

- Got all the questions right                       I really want a challenge!

- Got 1-2 questions right                              I think a bit more practice will help me!

- Got the questions incorrect/correct   I think more practice will help me! I                                                                                         would like some more help. 

Starter

Do this starter in your notebook alone. 

1. simplify the following expressions:

a)     3(a + 2) = (3 ⋅ a) + (3 ⋅ 2) = 

Starter

Do this starter in your notebook alone. 

1. simplify the following expressions:

b)    - (5 - y) = (-1 ⋅ 5) + (-1 ⋅ -y) =

Starter

Do this starter in your notebook alone. 

1. simplify the following expressions:

c) -4(3 + 2x) + 2 = (-4 ⋅ 3) + (-4 ⋅ 2x) + 2 = 

Extra practice + help

1. expand the brackets

2. rearrange so that the like terms are together

3. simplify by collecting like terms

2x(3y + 3) + 3x(y + 1)

Extra practice + help

Extra practice

Challenge

Challenge

Challenge

Challenge

Coloring activity

Find the right colors to complete the picture.