Grade 9 Geography Mapping Skills – Map Scale

Slides:

Advertisements

Similar presentations

Measuring distance on a map Measuring distance on a map is one of the most important skills to develop. If you can accurately measure the distance you.

Advertisements

True measurements and scale measurements

GCSE Mathematics Targeting Grade C Shape and Space Unit 5 Bearings.

RATIOS OF SCALE DRAWINGS. SCALE DRAWINGS SCALE DRAWINGS: A scale drawing is a drawing that represents a real object. The scale of the drawing is the ratio.

Scale and Distance.

Measuring Distance on a map (The straight way, or how the crow flies.)

Map Scale & Distance L.O: Identify distances on maps of varying scales – Local, national, global. Starter: Draw a quick (really quick) map of the classroom.

Map Scales CGC1D.

Map Scale Looking at the maps on the screen ask the students which one has the largest scale? This will remind the students of what they have already learnt.

Measuring the length and distance

Maps and Scale Drawings

Maps & Scale Drawings Pg in the textbook.

Mind’s On – Terms Review What is the purpose of a thematic map? (Ben S) What is an example of a general purpose map? (Maddy) Name 2 ways maps can simplify.

Scale and Distance.

Using cartoons to draw similar figures

Scale and Distance. Map Scales Large scale maps show the most detail but only cover a small area e.g.-road maps, town plans, parks. Small scale maps show.

Scale Drawings and Scale Models

Homework Help Step by Step help for homework sheet on ratios in maps.

7-4 Scale Drawings p  Indicator – M4 Solve problems involving scale factors.

Why is that Map so Small??? THE INS AND OUTS OF HOW TO USE A SCALE.

Scale Factor A Look at Scale Factor and Scale Drawings.

On A Side Note: Cartoon Drawings Find a cartoon from a newspaper, magazine, or computer. Cut around the edges of your cartoon so the edges are straight.

Scale Drawings Pre-GCSE Maths. Aims and Objectives Aims To be able to accurately measure a scale drawing and to calculate real life sizes. (AoN portfolio)

Mapping to Scale.

A map scale represents the Earth’s surface drawn smaller than it really is. A map is drawn to scale. Scale means that a small distance on the map stands.

Scale and Distance. Map Scales Large scale maps show the most detail but only cover a small area e.g. road maps, town plans. Small scale maps show less.

How can I fit the whole world into my hand?. Using scale Aim: To understand why and how scale is used on a map. Outcome: To be able to create a map with.

It means that one unit on a map

USING MAP SCALES. Map Scale  A scale is a statement of the relationship between distances on a map and distances in real life.  A drawing that is made.

A Look at Scale Factor and Scale Drawings

Parts of a Map.

Geographic Skills : The Map Scale. What is a map scale Map scale is a measurement on the map representing the actual distance at the location identified.

Section 6.6 Scale Drawings

MAP SCALE. A map shows features of the earth’s surface. To be accurate, all distances related to these features must be true to reality. However, to be.

Lets Make A Map Geography.

Unit 2: The scale of a map and the measuring of distance A. What is a scale?  Purpose: To fit large areas onto small sheets of paper  A ratio between.

Homework – Map Ratios – for Tuesday 12 th Jan STP 8 Page 100 Exercise 5d 1,3,5,7,9,10.

Class Introduction to maps. What is a map? A generalized view of an area, usually some portion of Earth’s surface, as seen from above at a greatly reduced.

Geography of Canada Time Zones & More on Scale.

A four figure grid reference points you towards a particular square on a map. On all OS maps these squares represent one square kilometre. All maps will.

What is the difference between these pictures? Every part of the model is in true proportion to the life- size object. This reduction is the basis for.

The amount by which the represented reality has been reduced on a map 1: : : The amount by which the represented reality has been.

Five elements of a map.

Maps and floor plans are smaller than the actual size.

Scale may be given in 2 ways

What does it mean when a drawing is not to scale?

Map scales A scale drawing is a drawing in which all dimensions have been reduced in exactly the same proportion. For example, if a model boat is made.

Grade: 7 Lesson: Map Scales

Aims for today’s lesson:

Today’s Lesson: Scale proportions What: Why:

Maps and scale drawings are:

Scale and Distance.

= Divide each measure by the GCF, 3. drawing length actual length

Measuring Distance Using Maps

Preston High School Geography

Map Scales CGC1D.

What is scale?.

The distance on the map or drawing or the actual distance.

True measurements and scale measurements

AIM 7-5: How can we use ratios to make indirect measurements?

True measurements and scale measurements

True measurements and scale measurements

Scale: Is it an accurate representation?

Social Studies Geography Mapping Skills – Map Scale

What is a scale? Scale is the ratio of the size of objects on a map compared to their size in the real world. 4 cm:1 km For example on a map with the scale.

Presentation transcript:

Grade 9 Geography Mapping Skills – Map Scale Maps are very useful tools for locating things, determining direction or calculating distances. What? How do you calculate a real or actual distance from a paper map?

Grade 9 Geography Mapping Skills – Map Scale Calculating real distances… You need two things from your map AND a mathematical formula to determine real distances: Map Distance – The measured distance on the map Scale – A ratio (i.e., each centimetre on the map is how far in real life Formula – MD/GD = scale where GD is Ground Distance (the real or actual distance)

Grade 9 Geography Mapping Skills – Map Scale Map Distance (MD) With a ruler, you need to measure the distance ON THE MAP from your starting point to your finishing point. The example shows a trip starting in Istanbul and finishing near the border with Iran. With a ruler, measure the line. This is the distance on the map or Map Distance (MD)

Grade 9 Geography Mapping Skills – Map Scale Scale is located on the map…usually along a bottom edge Scale is a statement of the relationship between distances on a map (i.e., Map Distance (MD)) and distances in real life (i.e., Ground Distance (GD)). As you know, a drawing made according to the scale will be an exact copy of the real object…only smaller. Scale is always presented as a ratio on a map. For example, scale is given as 1:25,000,000 which means 1 cm on a map is 25,000,000 cm in real life (or 250 km)

Grade 9 Geography Mapping Skills – Map Scale Formula The formula for calculating the real distance (i.e., Ground Distance (GD)) is a ratio. If you know Map Distance (MD) and scale, you can “somehow” combine them to calculate GD. MD / GD = scale

Grade 9 Geography Mapping Skills – Map Scale MD / GD = scale Example Scale is 1:37,000,000 or 1 cm = 370 km or 1 / 370 MD = 10.2 cm What is Ground Distance (GD)? MD / GD = 1 / 370 Let GD = x 10.2 / x = 1 / 370 x = (10.2)(370) = 3,374 The Ground Distance is 3,374 km

Grade 9 Geography Mapping Skills – Map Scale MD / GD = scale Try one Scale is 1:25,000,000 or 1 cm = 250 km or 1 / 250 MD = 13.2 cm What is Ground Distance (GD)? MD / GD = 1 / 250 Let GD = x The Ground Distance is 3,300 km …right?