# 1T H/VWO §2.1 Natural numbers

Ch 2
1 / 19
Slide 1: Slide
WiskundeMiddelbare schoolhavo, vwoLeerjaar 1

This lesson contains 19 slides, with interactive quizzes and text slides.

Lesson duration is: 50 min

## Items in this lesson

Ch 2

Ch 2 NUMBERS

#### Slide 2 -Slide

Before doing §2.1 ......
We will go through the 'Theory' parts , including some
examples.
Maybe this sometimes isn't completely clear to you.
Don't worry, it is an Introduction, to get familiar with it.
After this Lessonup, you can work your way through the paragraph in your own tempo.

#### Slide 3 -Slide

Natural numbers-what's that?! Look below!
digit = cijfer (0 ,1 ,2 etc.)
is determined by = wordt bepaald door

some examples:

#### Slide 5 -Slide

What is the value (waarde) of
the digit (getal) 6 in
567 874 ?
A
67 874
B
6 x 10 000
C
60 000
D
6 000

#### Slide 6 -Quiz

567 874
Solution:
the number 6 in this number means
60 000   or   6 x 10 000

#### Slide 7 -Slide

The value of numbers again:

in a scheme:

#### Slide 9 -Slide

Next ....
As an Intro here comes a Joke on Large Numbers.
(If you dislike Jokes, close your eyes for one slide.)

#### Slide 11 -Slide

Who can explain last slide's joke?

....,    ......., or maybe ..... ?

#### Slide 12 -Slide

Very large numbers ...

#### Slide 13 -Slide

A billion is ... in dutch.
A
een miljoen
B
een biljoen
C
een miljard
D
een galjoen

#### Slide 14 -Quiz

The meaning of    1 000 000 000   is:
In English: a billion
In Dutch: een miljard
(ons biljoen = 1 000 000 000 000 !)

#### Slide 15 -Slide

Here are 2 new SYMBOLS:

#### Slide 16 -Slide

There are several mnemonics (=ezelsbruggetjes, of geheugensteuntjes) to explain the signs for <  and >
If you know one of them, key it in in the next slide.
Let's share what we know!

#### Slide 17 -Slide

< and > , how to remember?!

#### Slide 18 -Mind map

Homework time:
+ Do §2.1   Natural numbers now!
+ Choose your Learning path (see p.54 on top)

+ hand in pics of your work on GC
+ good luck!