Maps & Graphs!!Maps & Graphs!!

What is a graph?What is a graph?

A diagram that exhibits a relationship, often A diagram that exhibits a relationship, often functional, between two sets of numbers as a functional, between two sets of numbers as a set of points having coordinates determined set of points having coordinates determined by the relationship. by the relationship. OR / ANDOR / AND

A pictorial device, such as a pie chart or bar A pictorial device, such as a pie chart or bar graph, used to illustrate quantitative graph, used to illustrate quantitative relationships. Also called chart. relationships. Also called chart. OROR

A diagram showing how two qualities are A diagram showing how two qualities are relatedrelated

Examples of GraphsExamples of Graphs

What kind of graph is What kind of graph is this?this?

What kind of graph is What kind of graph is this?this?

What kind of graph is What kind of graph is this?this?

Data terminologyData terminology

MeanMean ModeMode RangeRange MedianMedian

Data terminologyData terminology

Mean (Average)Mean (Average)

approximating the statistical norm or average or expected value

ModeMode

is the value that occurs the most frequently in a data set

Data terminologyData terminology

RangeRange

The range of data in the set. i.e. the highest and lowest values in the data set

MedianMedian

the middle value of an ordered set of values

Interpreting GraphsInterpreting Graphs

Interpreting GraphsInterpreting Graphs

What is a map?What is a map?

A map is a simplified version of reality A map is a simplified version of reality and is used to record information about and is used to record information about the earth’s surface. Maps show a ‘bird’s the earth’s surface. Maps show a ‘bird’s eye’ view of an area and is drawn to eye’ view of an area and is drawn to scale scale ANDAND

Maps are a way of communicating Maps are a way of communicating information about placesinformation about places

What are the 5 essential What are the 5 essential elements of ALL maps??elements of ALL maps??

What are the 5 essential What are the 5 essential elements of ALL maps??elements of ALL maps??

1.1. TitleTitle

2.2. Grid Grid

3.3. DirectionDirection

4.4. ScaleScale

5.5. LegendLegend

You may know these from BOLTTSYou may know these from BOLTTS

What kind of map is this?What kind of map is this?

What kind of map is this?What kind of map is this?

What kind of map is this?What kind of map is this?

What kind of map is this?What kind of map is this?

What is this kind of map?What is this kind of map?

What is this kind of map?What is this kind of map?

What is a choropleth What is a choropleth map?map?

A map used to show A map used to show the average density the average density (or concentration) of (or concentration) of features such as features such as population and population and rainfallrainfall

What is a choropleth What is a choropleth map?map?

Each area that falls Each area that falls within a particular within a particular range is allocated an range is allocated an appropriate colour appropriate colour until the overall until the overall pattern is revealed. pattern is revealed.

What is a proportional What is a proportional circle map?circle map?

A map that uses A map that uses symbols (shapes – symbols (shapes – generally circles) generally circles) drawn in a drawn in a proportional size proportional size of a represented of a represented variable. variable.

What is a flowline map?What is a flowline map?

FFlowline maps are lowline maps are designed to show designed to show movement – most movement – most commonly transports commonly transports systems or flow of systems or flow of people with the use of people with the use of arrows with the width of arrows with the width of the arrow representing the arrow representing the amount. the amount.

PhotographsPhotographs

Ground photos are those taken at ground Ground photos are those taken at ground level with the camera pointed level with the camera pointed horizontally.horizontally.

Aerial photos are taken from the air or a Aerial photos are taken from the air or a high point. They can be:high point. They can be: Oblique – an aerial photo taken on an angleOblique – an aerial photo taken on an angle Vertical – photo taken from a plane with the Vertical – photo taken from a plane with the

camera lens pointing straight down camera lens pointing straight down

PhotographsPhotographs

Satellite images – are taken from space Satellite images – are taken from space that are digitally captured data of the that are digitally captured data of the earth’s surface which is processed to earth’s surface which is processed to produced a digital image. produced a digital image.

What type of photos are What type of photos are these? these?

Photo-SketchPhoto-Sketch

What is a topographic What is a topographic map?map?

Topography (topo-, "place", and graphia, Topography (topo-, "place", and graphia, "writing") is the study of Earth's surface "writing") is the study of Earth's surface featuresfeatures

What is a topographic What is a topographic map?map?

Its a map which accurately depicts the physical Its a map which accurately depicts the physical features and relief (landscape) of an area by features and relief (landscape) of an area by using contour lines to represent the size, using contour lines to represent the size, shape, and elevation of the features. shape, and elevation of the features.

They are usually maps of fairly small areas They are usually maps of fairly small areas such as a town, or city and its surrounding such as a town, or city and its surrounding countrysidecountryside

Topographic maps show…Topographic maps show…

Natural Features: rivers, vegetation, Natural Features: rivers, vegetation, coasts and relief (hills, plains, plateaus, coasts and relief (hills, plains, plateaus, mountains etc)mountains etc)

Cultural Features: roads, railways, Cultural Features: roads, railways, bridges, housesbridges, houses

Examples of Natural & Examples of Natural & Cultural featuresCultural features

Mine Mine

Examples of Natural & Examples of Natural & Cultural featuresCultural features

Forest Forest

Examples of Natural & Examples of Natural & Cultural featuresCultural features

Dairy FarmDairy Farm

Examples of Natural & Examples of Natural & Cultural featuresCultural features

Town Town

Examples of Natural & Examples of Natural & Cultural featuresCultural features

RiverRiver

Elements of Topographic Elements of Topographic MapsMaps

ContoursContours ScaleScale GridsGrids Direction & BearingDirection & Bearing Measuring Distance & AreaMeasuring Distance & Area

Group workGroup work

Your must ensure that every member of your Your must ensure that every member of your group understands group understands all all aspects of your sectionaspects of your section

Any one of your group will be called upon to Any one of your group will be called upon to present information or answer questionspresent information or answer questions

You must be able to co-operate, listen and You must be able to co-operate, listen and most importantly contributemost importantly contribute

All group members must have some part / roleAll group members must have some part / role