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Class 12

Geography: Practical Work in Geography Part II

22 lessons in 4 chapters, explained in plain words.

Data: Its Source and Compilation

  1. Data and why we need it
  2. Sources of data
  3. Tables, percentages and index numbers
  4. Grouping and frequency distribution
  5. Frequency polygons and ogives

Data Processing

  1. Central tendency and the mean of ungrouped data
  2. Mean of grouped data
  3. Median
  4. Mode and comparing the averages

Graphical Representation of Data

  1. Representing data and drawing rules
  2. Line graphs and polygraphs
  3. Bar diagrams
  4. Pie diagrams
  5. Flow maps
  6. Dot and choropleth maps
  7. Isopleths and interpolation

Spatial Information Technology

  1. Spatial information technology and GIS
  2. Geographical information and GIS advantages
  3. Components of GIS
  4. Raster and vector data
  5. The sequence of GIS work
  6. Spatial analysis: overlay and buffer