Latitude in Africa

Globe logoIn Africa, the big idea we will explore
is the idea of latitude – distance from the equator.

Latitude has an influence on many things,
including rainfall, fires, diseases, building styles,
ancient capitals, trade connections, and so forth.

These materials use examples from Africa
to explore some consequences of latitude.

Day 1: Most students will need to gain some
visual vocabulary about African environments
z Africa green savannafrom photos, videos, or a web image search.
Use keywords such as “Rainforest in Congo,”
“Savanna in Nigeria,” “Grassland in Sudan,”
and “Sahara in Mali” (Unfortunately, the keywords
“Desert in Mali” get you a collection of hat ads!).

It’s better to look at several images
of an environment, and look for the common features,
rather than study one image extensively.

The matrix or card activity is not really intended
as a way to teach about these environments –
it’s simply a way to organize perceptions
you acquire by other means.

Big-Ideas-Sample-MapsDay 2: The seasonal movement of the Equatorial Rainy Belt
is the major reason for these environmental differences.
The Africa clickable map has several different ways
to visualize the resulting pattern of precipitation.

To assess their understanding of African climate,
students can match climagraphs with places (see the
North America unit for additional resources about
these useful graphs). Alternatively, they can examine
a table of climate data and identify the rainy season
at each place (trees need at least  4 inches per month,
shrubs can get by with 3, grasses with 2):

Endemic diseases are among the most important
consequences of a hot, rainy equatorial climate.

z Africa languagesOptions: The clickable pdf about Africa Diseases
is based on the Africa clickable miniAtlas,
which lets students explore relationships
among many things that are directly or indirectly
related to latitude in Africa (e.g., rainfall, plants,
wildfires, animals, land use, trade, language,
and even things like religion and slavery).

Here are a few sample maps that can be printed
from the clickable map:

Summary: At the end of the unit,
students should be able to explain
how the number of rainy months
in a place depends on its latitude.

africa mini GIS 20130814
This understanding can provide perspective
for individual inquiries or capstone projects
about environments and land use in Africa
(e.g., shifting cultivation, irrigated farming,
or nomadic herding). It can also provide
perspective for inquiries into  the history
of African empires, trade, the spread of Islam,
European colonization, and the trans-Atlantic
slave trade. Finally, it can provide background
for investigations of current-event topics
such as border disputes and civil wars,
climate change and desertification,
diseases such as malaria or Ebola,
the problem of big-game poaching, the
growing religious conflicts in the Sahel, or the
development of African mineral resources
or solar energy in North Africa.