1TH/vwo §5.4 Dividing in a given ratio

§5.4 Dividing in a given ratio
1 / 28
volgende
Slide 1: Tekstslide
WiskundeMiddelbare schoolvwoLeerjaar 1

In deze les zitten 28 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 50 min

Onderdelen in deze les

§5.4 Dividing in a given ratio

Slide 1 - Tekstslide

What are HIGHLIGHTS?

Slide 2 - Tekstslide

Highlights?

Slide 3 - Tekstslide

Highlights?

Slide 4 - Tekstslide

As a pair:
One of you tells the other a HIGHLIGHT from your Holiday.
timer
0:45

Slide 5 - Tekstslide

As a pair:
Now reverse the roles:
tell the other a HIGHLIGHT from your Holiday.
timer
0:45

Slide 6 - Tekstslide

§5.4 Dividing in a given ratio
What does this mean?!
Let's look at a simple example.

Slide 7 - Tekstslide

Dividing 400 euros between 2 friends in the given ratio of  3 to 1, or  3 : 1.                                    As follows:
1.      3 : 1  means that there are 4 parts in total, of which one get 3 parts and               the other only 1 part.
2.    one part is  400 : 4 = 100 euros.
3.    one friend gets 3 x 100 = 300 euros, the other 1 x 100 = 100 euros.
4.    check:     300 + 100 = 400 euros.  It checks out!

Slide 8 - Tekstslide

Organising is the real thing!
+ take some essentials before you now:
    pen, pencil, Notebook, Textbook, etcetera
+ these things make it easier to answer the coming tasks on 
   LessonUp and also to do the Homework, afterwards!

Slide 9 - Tekstslide

Task 1 for you(!):
Divide 500 euros in the ratio 3 : 1 
between two friends.

Slide 10 - Tekstslide

dividing 500 in the ratio 3 : 1 gives
timer
0:45
A
300 and 200
B
400 and 100
C
375 and 125
D
425 and 75

Slide 11 - Quizvraag

Explanation Task 1:
Divide 500 euros in the ratio 3 : 1.
1.  there are 3 + 1 = 4 parts in total
2.  one part = 500 :  4 = 125 euros
3.  one gets 3 x 125 = 375   and the other gets  1 x 125 = 125  euros 

Slide 12 - Tekstslide

Schermafbeelding 2020-12-12 om 19.39.06



 For another example, see next slide.

Slide 13 - Tekstslide

Schermafbeelding 2020-12-12 om 19.39.13

Slide 14 - Tekstslide

Slide 15 - Tekstslide

Slide 16 - Tekstslide

Task 2:
Choose the right answer in the next slide!

Slide 17 - Tekstslide

Task 2:
Divide 360 euros in the ratio
7 : 5
timer
1:00
A
150 and 210
B
165 and 195
C
210 and 150
D
160 and 200

Slide 18 - Quizvraag

explanation:

Slide 19 - Tekstslide

Slide 20 - Tekstslide

Task 3:

Slide 21 - Tekstslide

Divide 390 kg in the ratio
5 : 8
A
120 and 270
B
150 and 240
C
240 and 150
D
140 and 250

Slide 22 - Quizvraag

explanation:

Slide 23 - Tekstslide

Watch this...

Slide 24 - Tekstslide

Task 3:
Think hard about the following exercise:

Slide 25 - Tekstslide

explanation:
Schermafbeelding 2020-12-12 om 19.40.40

Slide 26 - Tekstslide

About making §5.4 :
You now learnt an easy way to solve the tasks.
 Make sure that when making the tasks, you 
WRITE DOWN a GOOD CALCULATION!! 
Use the steps we 
just practised.

Slide 27 - Tekstslide

Homework time
Time to do §5.4 !  
1. put your ipad in the bag
2. make §5.4
3. correct your work with the Solutionsbook

Slide 28 - Tekstslide