European class – Grenoble - France - dnl

Pie Chart – Line graph
 Date (english) : …………………………………………………………………………: …………….………
 Pie Chart
A Pie Chart is a circular chart which is divided
C’ est un diagramme circulaire qui est divisé
into sectors in which the area of each sector
en secteurs où la surface de chaque secteur
is proportional to the size of the data
est proportionnel à la taille de la valeur ……
Pie charts are used to show data in proportion.
Les diagrammes circulaires sont utilisés pour mettre en évidence des proportions
 Question: The pie chart shown below represents the percentage of 87 dams built for different purposes.
Find the number of dams built for irrigation and for hydroelectricity generation.
Irrigation : 87  36 / 100 = 26.1 rounded to 26 dams
hydroelectricity generation : 87  20 / 100 = 17.4 rounded to 17 dams
 Line Graph
Line graph is a graph that uses line segments
C’est un graphique qui utilise des segments
to connect data points and shows changes
pour relier les points de données et montre des changements
in data over time.
dans les données au cours du temps
 Question: Irena recorded her test scores in a line graph as shown. What is Irena's score on the Math test?
The Irena’s score in Maths is 60…
 Question: What is Irena's less good score ?
The Irena’s less good score is 60, in the mathematics field
 Question: What is Irena's mean ?
The mean is : [ (3  80) + 60 ] / 4 = 300 / 4 = 75
 Examples
The table below shows daily temperatures for New York City, recorded for 6 days, in degrees Fahrenheit.
NDS secondary school – Teacher : P.Chevallier - 20 June 2016
Pie Chart – Line graph
 Date (english) : …………………………………………………………………………: …………….………
 Pie Chart
A Pie Chart is a circular chart which is divided
…………………………………………………………………….……………
into sectors in which the area of each sector
…………………………………………………………………….……………
is proportional to the size of the data
…………………………………………………………………….……………
Pie charts are used to show data in proportion.
…………………………………………………………………….……………
 Question: The pie chart shown below represents the percentage of 87 dams built for different purposes.
Find the number of dams built for irrigation and for hydroelectricity generation.
………………………………………………………………………………………………………………….………….……………
………………………………………………………………………………………………………………….………….……………
 Line Graph
Line graph is a graph that uses line segments
…………………………………………………………………….……………
to connect data points and shows changes
…………………………………………………………………….……………
in data over time.
…………………………………………………………………….……………
 Question: Irena recorded her test scores in a line graph as shown. What is Irena's score on the Math test?
………………………………………………………………………………………………………………….………….……………
 Question: What is Irena's less good score?
………………………………………………………………………………………………………………….………….……………
 Question: What is Irena's mean?
………………………………………………………………………………………………………………….………….……………
………………………………………………………………………………………………………………….………….……………
 Examples
The table below shows daily temperatures for New York City,
recorded for 6 days, in degrees Fahrenheit.
Built your own line graph
NDS secondary school – Teacher : P.Chevallier - 20 June 2016