← 1.2 Map Reading and Interpretation
Gradient and intervisibility
Geography · Grade 10 · about 40 minutes
Calculating gradient in the same units, reading the ratio the right way round, and deciding whether two points can see each other.
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- 10 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Reading a topographical map
- Relief, drainage, vegetation and drawing sections
- Map scale in three forms
- Compass directions, bearings and the three norths
- Conventional signs on Kenyan maps
- Locating features with grid references
- Spot heights, trig stations and contour interval
- Landforms from contour patterns
- Measuring distance on a topographical map
- Calculating area from a topographical map
- Gradient and intervisibility
- Drawing cross sections and sketch sections
- Interpreting a Kenyan topographical map