H9 'Measuring' -- Prior knowledge + §1

Today, you will learn ...

... what a quantity is and what a unit is.
... how to convert units (of length).
... what the term scale means,
    and how to use scale.
CHAPTER 9:    Measuring
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Slide 1: Tekstslide
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In deze les zitten 11 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 45 min

Onderdelen in deze les

Today, you will learn ...

... what a quantity is and what a unit is.
... how to convert units (of length).
... what the term scale means,
    and how to use scale.
CHAPTER 9:    Measuring

Slide 1 - Tekstslide

Deze slide heeft geen instructies

Would you like to swim in a big pool on your holidays? Then you will love the San Alfonso del Mar resort in Chile. This resort has the biggest swimming pool in the world! The swimming pool has a length of 1.013 metres, an area of 8 ha and is up to 35 metres deep. 
The pool contains 250 million litres of filtered sea water from the Pacific Ocean, wich is nearby. The water is heated by the sun and its temperature can be up to 26 °C.

Slide 2 - Tekstslide

Deze slide heeft geen instructies

Something you measure is called a quantity.

A quantity is measured using a unit.

Slide 3 - Tekstslide

Deze slide heeft geen instructies

Quantities
and units

Slide 4 - Woordweb

Deze slide heeft geen instructies

Quantity
Measuring instrument
Unit
measuring jug
litre
time
a scale
length
degrees Celsius
stopwatch
weight
ruler
centimetre
seconds
volume
thermometer
grams
temperature

Slide 5 - Sleepvraag

Deze slide heeft geen instructies

Units of length

Slide 6 - Tekstslide

Deze slide heeft geen instructies

23 m = ... cm
23 m = ... cm
23 m = 230 dm
230 dm = 2300 cm
82 hm = ... km
82 hm = ... km
82 hm = 8.2 km

Slide 7 - Tekstslide

23 · 10 · 10 = 2300


82 : 10 : 10 = 0.82


stopwatch
00:00
Start making exercises 1-5

Slide 8 - Tekstslide

Deze slide heeft geen instructies

Scale

A scale of 1 : 200 means the measurements of the real object are 200 times as large as those of the model.

Slide 9 - Tekstslide

Deze slide heeft geen instructies

Scale

Use a scale of  1 : 200

- If the scale model of a bridge is 150 cm long,
   how long is the real bridge?

- How tall is the scale model of a house that is    9 metres tall?


150 x 200 = 300,000 cm 
                  (= 3 km)
9 : 200 = 0.045m 
(= 4.5 cm)

Slide 10 - Tekstslide

Deze slide heeft geen instructies

Today, we have learned ...?




Slide 11 - Tekstslide

Deze slide heeft geen instructies