Three Basic Types Three Basic Types of Mapsof Maps

What is a map?What is a map?

A map is a representation, usually on a A map is a representation, usually on a flat surface, of the features of an area flat surface, of the features of an area of the Earth or a portion of the of the Earth or a portion of the heavens, showing them in their heavens, showing them in their respective forms, sizes, and respective forms, sizes, and relationships according to some relationships according to some convention of representation. convention of representation.

Now what does that mean?

►A map is a representation A map is a drawing or model

►Usually on a flat surface Of a round Earth on a flat surface

►The features of an area of the Earth Shows the landforms (mountains, rivers,

etc.)►A portion of the heavens

Part of the sky in a particular region►Showing them in their respective forms,

sizes, and relationships Drawn to scale

►According to some convention of representation Using an accepted form of drawing or model

Three Basic Types of Three Basic Types of MapsMaps

A map is an accepted drawing A map is an accepted drawing or model of a round Earth drawn or model of a round Earth drawn to scale on a flat surface.to scale on a flat surface.

A map can show landforms A map can show landforms such as, mountains, rivers, and such as, mountains, rivers, and deserts. Also can include parts of deserts. Also can include parts of the sky in a particular regionthe sky in a particular region. .

Physical MapsPhysical Maps► Physical maps show Physical maps show

the natural features the natural features of the Earth. of the Earth.

► Physical maps do Physical maps do not contain man - not contain man - made features.made features. For example, a For example, a

physical map physical map would be a map would be a map of what you of what you would see if you would see if you were looking were looking down on Earth down on Earth from space.from space.

When you look at this map, what do When you look at this map, what do you see?you see?

• Notice you do not see country borders or city markings. These divisions are created by people. For example, there is no actual line dividing Texas from its bordering states.

• Although some astronauts (with the use of binoculars believe it or not) are able to see roads, large ocean tankers, and even the Great Pyramids from space, at very high altitudes, none of these are visible and all you are left with are natural land formations.

Political MapsPolitical Maps Political maps show how humans have

impacted the landscape. For example, city names, roads, country borders,

etc. are all part of political maps.

Political maps change frequently (physical maps change very slowly through geologic processes) and must be redrawn often. A political map of the world that is 50 years old is no longer accurate.

Wars and ethnic conflict are two major reasons why political maps change.

Political MapsPolitical Maps

Thematic MapsThematic Maps►Thematic maps can represent a variety Thematic maps can represent a variety

of information including things like of information including things like climate, precipitation, vegetation, climate, precipitation, vegetation, elevation, population, life expectancy, elevation, population, life expectancy, etc.etc.

►Thematic maps are generally used Thematic maps are generally used when you are looking at a single piece when you are looking at a single piece of information.of information.

Creating a Thematic MapCreating a Thematic Map►I decided to create a thematic I decided to create a thematic

map. map.

►I chose the topic of favorite Pizza I chose the topic of favorite Pizza

toppings for one of my classes.toppings for one of my classes.

►Now I need to decide on a way to Now I need to decide on a way to represent the information I have represent the information I have collected.collected.

A classroom is set up in the following A classroom is set up in the following manner…manner…

= Student Desk

I need to decide what information I I need to decide what information I want to know more about.want to know more about.

► I wanted to know which pizza toppings I wanted to know which pizza toppings students prefer to eat from the following students prefer to eat from the following list;list;

Pepperoni, Hamburger, Cheese, Pepperoni, Hamburger, Cheese, or or

SausageSausage

► I will now ask the students to choose from I will now ask the students to choose from this list of toppings and record the results. this list of toppings and record the results.

►Now I need to choose a way to Now I need to choose a way to represent the information (data) I represent the information (data) I have gathered.have gathered.

►I have chosen to use different I have chosen to use different

colors to represent each different colors to represent each different pizza topping.pizza topping.

►By using varied colors I can get a By using varied colors I can get a visual idea of the distribution of visual idea of the distribution of pizza topping preferences.pizza topping preferences.

For example, the For example, the thematic map of my thematic map of my classroom may look classroom may look like this…like this…

Pepperoni Hamburger Cheese Sausage

According to this thematic map According to this thematic map of the classroom, which pizza of the classroom, which pizza topping is the most popular?topping is the most popular?

Creating a Thematic MapCreating a Thematic Map► You are now going to create a thematic map. You are now going to create a thematic map. ► You need to find out what pizza topping is the classes You need to find out what pizza topping is the classes

favorite or least favorite between the choices of favorite or least favorite between the choices of pepperoni, hamburger, cheese, and sausage. pepperoni, hamburger, cheese, and sausage.

► Draw a text feature in your composition book that will Draw a text feature in your composition book that will represents the students in your class today.represents the students in your class today.

► Create a key/legend at the bottom to help us interpret Create a key/legend at the bottom to help us interpret the collected information.the collected information.

► You will need to write down the information (data) to be You will need to write down the information (data) to be used in your thematic map when the whole class is used in your thematic map when the whole class is polled (asked what topping each student likes). polled (asked what topping each student likes).

► Transfer the learned data onto your thematic map.Transfer the learned data onto your thematic map.► Write a conclusion stating what you learned from reading Write a conclusion stating what you learned from reading

the data presented on your thematic map. the data presented on your thematic map.