What is an Algorithm?

A precise set of

instructions to solve a problem

We can draw an algorithm,

called a flowchart

Or write the same

algorithm, in pseudo-code

Then we cancode it in a

program using Python

Start

Output "where do you live?"

Input town

town = "Altrincha

m"?

Yes N

o

Output "walk

to school

Output "get the

bus!"

Stop

RECEIVE town FROM

IF town = "Altrincham" THEN

SEND "get the bus" TO DISPLAY

SEND "walk to

school" TO DISPLAY

ELSE

END IF

town = input ("where do you live?")

if town =="Altrincham":

print ("walk to school")

else:print ("get the bus")

Program codetyped in uses Python

Pseudocodewritten uses keywords

Flowchartvisual uses shapes