DB1N 16-6

Welcome
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Slide 1: Tekstslide
WiskundeMiddelbare schoolvwoLeerjaar 1

In deze les zitten 34 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 45 min

Onderdelen in deze les

Welcome

Slide 1 - Tekstslide

Planning
  • Prior knowledge
  • New theory

Slide 2 - Tekstslide

Grab your laptop

Slide 3 - Tekstslide

Simplify
10a2b
A
20ab
B
12ab
C
-20ab
D
8a

Slide 4 - Quizvraag

Simplify
7xy+8xy
A
xy
B
14xy
C
14x
D
15xy

Slide 5 - Quizvraag

Simplify
3ab+7ac
A
4ab
B
na
C
4bc
D
4ac

Slide 6 - Quizvraag

Simplify
3a6a
A
18a2
B
18a
C
na
D
9a

Slide 7 - Quizvraag

Simplify
4x7y
A
-28xy
B
28xy
C
na
D
-11xy

Slide 8 - Quizvraag

Put your laptop away and grab your notebook

Slide 9 - Tekstslide

New theory

Slide 10 - Tekstslide

You saw how to simplify products with letters and how to simplify like terms.

Now we are going to combine these two. 

Slide 11 - Tekstslide

How would you calculate 
38+75

Slide 12 - Tekstslide

How would you calculate 
38+75
38+75=

Slide 13 - Tekstslide

How would you calculate 
38+75
first multiplication
38+75=
38+75

Slide 14 - Tekstslide

How would you calculate 
38+75
24+35=
first multiplication
38+75=
38+75

Slide 15 - Tekstslide

How would you calculate 
38+75
24+35=
first multiplication
38+75=
then the sum
38+75

Slide 16 - Tekstslide

How would you calculate 
38+75
24+35=
first multiplication
59
38+75=
then the sum
38+75

Slide 17 - Tekstslide

But what when there are letters in the calculation?
53a+64a

Slide 18 - Tekstslide

But what when there are letters in the calculation?
53a+64a
What do you think is the first step?

Slide 19 - Tekstslide

But what when there are letters in the calculation?
53a+64a=
Step 1: multiplication
Write down!

Slide 20 - Tekstslide

But what when there are letters in the calculation?
53a+64a=
Step 1: multiplication
Write down!
15a+24a=

Slide 21 - Tekstslide

But what when there are letters in the calculation?
53a+64a=
Step 1: multiplication
Write down!
15a+24a=
What is the next step?

Slide 22 - Tekstslide

But what when there are letters in the calculation?
53a+64a=
Step 1: multiplication
Step 2: combine like terms
Write down!
15a+24a=

Slide 23 - Tekstslide

But what when there are letters in the calculation?
53a+64a=
Step 1: multiplication
Step 2: combine like terms
Write down!
15a+24a=
39a

Slide 24 - Tekstslide

Simplify                          
29b3b3
Write down the intermediate steps!

Slide 25 - Tekstslide

How to simplify                             
6x5y+3yz
6x5y+3yz=
Step 1:
Write down

Slide 26 - Tekstslide

How to simplify                             
6x5y+3yz
6x5y+3yz=
Step 1: multiplication
Write down

Slide 27 - Tekstslide

How to simplify                             
6x5y+3yz
6x5y+3yz=
Step 1: multiplication
36xy+3yz=
Write down

Slide 28 - Tekstslide

How to simplify                             
6x5y+3yz
6x5y+3yz=
Step 1: multiplication
Step 2: 
36xy+3yz=
Write down

Slide 29 - Tekstslide

How to simplify                             
6x5y+3yz
6x5y+3yz=
Step 1: multiplication
Step 2: combine like terms
36xy+3yz=
Write down

Slide 30 - Tekstslide

How to simplify                             
6x5y+3yz
6x5y+3yz=
Step 1: multiplication
Step 2: combine like terms
36xy+3yz
Write down

Slide 31 - Tekstslide

Simplify                          
6a7b4b5c
Write down the intermediate steps!

Slide 32 - Tekstslide

Questions?

Slide 33 - Tekstslide

Homework:
For Monday 21 June
Make: ex. 5, 7, 8, 10 on page 93

Slide 34 - Tekstslide