1G/1H Squares and cubes, order of operations

• Wiskunde
• Middelbare school
• havo
• Leerjaar 5

Good afternoon!

Schedule: 

• Learning goals
• What did we do last lesson? 
• Homework questions?
• Squares and cubes
• Order of operations (Bedmas)
• Sign in our books 
• Work on homework/worksheet

Learning goals 

At the end of this lessons I can:

• Classify numbers when they are cubic or square
• Use the correct order of operations to solve problems
• Sing the BEDMAS song from the top of my head 

What did we do last time?

Homework questions?

Homework questions?

Remember:

                                     54

base

index/exponent/power

Homework questions?

Remember:

                                     54

base

index/exponent/power

6. b)    27 = 3 ⋅ 3 ⋅ 3 = 33

Square numbers 

Cubic numbers

52

333

34993

272

27

25

0.462

1G: Squares and Cubes

!!!Beware!!! 

We can only call POSITIVE WHOLE NUMBERS cubic or square numbers. 

0.452 we do NOT call a square number!

Write this in the back of your notebook

1H: Order of operations

B  rackets

E xponents

D ivision

M ultiplication

A ddition

S ubtraction

(5 ⋅ 2 - 6) ⋅ (3 - 6 ÷ 2) =

{

{

From left to right!

From left to right!

From left to right!

From left to right!

Write this in the back of your notebook

1H: Order of operations

B  rackets

E xponents

D ivision

M ultiplication

A ddition

S ubtraction

(5 ⋅ 2 - 6) ⋅ (3 - 6 ÷ 2) =

{

{

From left to right!

From left to right!

From left to right!

From left to right!

1H: Order of operations

B  rackets

E xponents

D ivision

M ultiplication

A ddition

S ubtraction

(5 ⋅ 2 - 6) ⋅ (3 - 6 ÷ 2) =

(10 - 6) ⋅ (3 - 6 ÷ 2) =

{

{

From left to right!

From left to right!

From left to right!

From left to right!

1H: Order of operations

B  rackets

E xponents

D ivision

M ultiplication

A ddition

S ubtraction

(5 ⋅ 2 - 6) ⋅ (3 - 6 ÷ 2) =

(10 - 6) ⋅ (3 - 6 ÷ 2) =

4 ⋅ (3 - 6 ÷ 2) =

{

{

From left to right!

From left to right!

From left to right!

From left to right!

1H: Order of operations

B  rackets

E xponents

D ivision

M ultiplication

A ddition

S ubtraction

(5 ⋅ 2 - 6) ⋅ (3 - 6 ÷ 2) =

(10 - 6) ⋅ (3 - 6 ÷ 2) =

4 ⋅ (3 - 6 ÷ 2) =

4 ⋅ (3 - 3) =

{

{

From left to right!

From left to right!

From left to right!

From left to right!

1H: Order of operations

B  rackets

E xponents

D ivision

M ultiplication

A ddition

S ubtraction

(5 ⋅ 2 - 6) ⋅ (3 - 6 ÷ 2) =

(10 - 6) ⋅ (3 - 6 ÷ 2) =

4 ⋅ (3 - 6 ÷ 2) =

4 ⋅ (3 - 3) =

4 ⋅ 0 =

{

{

From left to right!

From left to right!

From left to right!

From left to right!

Let's get some books!

1. You will leave all your belongings in the classroom

2. You will follow me QUIETLY to Ro. 002

3. You will enter the classroom one by one and take a book. 

4. You will follow me QUIETLY to the library and register your book. 

5. When everyone has registered their book, we will return to the classroom together. 

Homework

1G             3, 5, 10

1H             3ace, 4cf, 5beh, 6be, 7ad

                  Pick up a worksheet!

Finished your homework?

1H: Order of operations

B  rackets

E xponents

D ivision

M ultiplication

A ddition

S ubtraction

((16/8-2)²)² - 18²

{

{

1H: Order of operations

B  rackets

E xponents

D ivision

M ultiplication

A ddition

S ubtraction

[(16/8-2)²]² - 18² =

[(2-2)²]² - 18² = 

[(0)²]² - 18² = 

(0)² - 18² = 

0 - 324 = 

-324

{

{