EXTRA ACTIVITIES 

3rd year of secondary education 


1. GRAPHS AND ALGEBRAIC EQUATIONS 

As with other previous windows,
different graphs appear in the following window by
changing the parameter “g”. 


1.Look carefully at all the different
graphs that appear on the electronic
board. Copy each graph into your exercise book. Then, choose the relevant algebraic
equation from the following and write it
next to each graph. 2. Each
of the graphs
above and their relevant algebraic
equations
correspond to a certain type of function.
Find out what each one is called and write it down in your exercise book. 

2. A STRANGE GRAPH 

In
this window there is a graph which is different to those you have seen so far,
but could refer to a whole variety of everyday situations. Look at it
carefully and complete the following activities in your exercise book. 


3.
The
graph
represents prices
charged in an airport car park according to
the time that
the car is parked there. Draw up a table of values that gives us the total
amount charged
for each period of time parked (work out the prices from one to twelve hours
and remember that car parks always round up the time to the next full hour).
Move the red point until you get the necessary information to complete the
activity. 4.
Draw up a
table of values
that shows the amount charged for each hour parked from
1 to 10
hours. 5.
Write
down five other everyday situations which could be represented with a graph
like this one (i.e. one that gives the same shape rather than the exact same
values). 

3. A BIT OF PHYSICS 

In
this window there is a graphical representation of the change
in potential
and kinetic
energy
of a body falling through the Earth's
gravity field
(where air friction
is
zero and acceleration
due to gravity
is 10 metres a second squared for a mass of 1 Kg). Look carefully at the data
given. 






















Josep Mª Navarro Canut 


Spanish Ministry of Education. Year 2001 



Except where otherwise noted, this work is licensed under a Creative Common License