This is a Clilstore unit. You can .
INTRODUCTION
We are going to study a little bit of functions. Lets begin with an example that will show you why is so important to know this topic.
The next image shows you a graph given by a tv news programme talking about the evolution of spanish unemployment in 2013.
And the second one graph shows the same information given the same day by th Ministry of Development.
-What do you think about the diferences between two graphs?
-Wich would be in your opinion the correct graph?
TRANSCRIPTION OF THE VIDEO
Now we are ready to watch a video that explain the key features of a function is, here you have the transcription:
1 In this task try to match each graph with its statement:
1. Height of a ball that bounces over time
2. Height of the water in a tank that was empty and is filling
3. Height that gets a balloon until it explodes.
4. Cost of internet usage with flat rate.
5. Height of the water in a tank that is being emptied.
6. Cost of internet use with a fixed rate of 15€ and 0.5€ per minute.
2 Ask true/false this questions about the graph that describe the temperature during five days:
a) From 12 to 24 hours on the first day there is an increasing interval
b) We found a maximum temperature on the third day
c) From the first to the second day the temperature remains constant
d) There is a minimum on the third day
e) The maximum variation is four degrees
f) The average temperature is 37 degrees
3 The following table shows the growth in cm of the head of a baby as the months pass. Try to draw the graph and write a short description of its evolution. Wich is the growth trend?. Can you say how much it will measure the perimeter at three years?
months 0 3 9 15 21 27 33
Perímeter 34 40 44 46 47 48 49
4 Open the web linked in manipulated functions, choose two graphs and try to explain with your own words why are them wrong.
Well done!... now if you want to go further try to work on the links we let you in the green buttons above.
Short url: https://clilstore.eu/cs/5253