Transcript Introducing Human Evolution

30th August, 2011
Miss Macfie
Introducing Human Evolution
Biology 3.7
AS90719
‘Describing trends in human evolution’
Externally assessed (3 credits)
KWL Chart
K = what you already know
W = what you want to know
L = what you have learnt
(filled out at the end of a unit)
Glossary (AS 90719)
Evolution refers to the permanent genetic change
in a population.
Natural selection is the biological force behind
evolution. It is the process in which heritable (‘able
to be passed on to offspring’) traits that make it
more likely for an organism to survive long enough
to reproduce become more common over
successive generations of a population.
Glossary (AS 90719) continued….
Population is a group of organisms of one species
living in the same geographic area (for e.g., all of the
deer in the Tararua Ranges).
MYA million years ago
Savannah Hot seasonally dry grassland
Bipedalism habitually walking upright, on two
legs.
Quadrupedal habitually walking on four limbs.
31/8/11
Learning intention: to be able to describe
the difference between hominids and
hominins.
http://www.madsci.org/posts/archives/2003-04/1050350684.Ev.r.html
Reading p223 and p224 Biology
Workbook (10-15 minutes)
• After reading p223 & p224 of your work book
use the sheet ‘Hominins vs Hominids’ to fill
out the following details:
- Definition
- Example
- Characteristics
- Importance
Update your 90719 glossary
Helpful hints: discuss with each other until you agree on a
definition and or use your text book
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Hominid
Hominin
Phylogenetic (p179)
Arboreal
Primates
Divergence (p224)
Ape
Selection pressures
Sexual dimorphism
1/9/11
Learning intention:
to gain an understanding of skeletal
changes that have assisted bipedalism.
Skeletal changes that have assisted
bipedalism
• location of the foramen magnum
• size and shape of the pelvis
• angle of the femur (thigh bone) from the hip
5.9.11
Today we are:
Finishing up section on bipedalism
Exit and reflect
Name a skeletal change that has assisted bipedalism
In your answer include:
- the name of the skeletal feature
- Explain how it has assisted bipedalism
Starter frame could be: “ A skeletal change that has
assisted the transition to bipedalism is…….”
6/9/11 Today we are learning:
How the morphology of teeth, jaw,
brain size and skull has changed
during the evolution of our species
Use your work book to figure out the definition
of the below terms
(please add to your glossary – you can draw examples
if it’s easier)
Dentition, Cranial, Diastema, brow ridges,
saggital crest, homo erectus, homo habilis,
Australopithecus africanus, morphological,
wernicke’s area, broca’s area, parietal lobe,
frontal lobe, cerebal cortex, cerebellum
6/9/11 Today we are learning:
What cultural evolution is and how
the findings in this area benefit our
understanding of human evolution.
Glossary (AS 90719) continued…
Research and define the below terms (add
them to your glossary). Provide at least one
example for each.
Biological evolution page 75 (revision booklet)
Cultural evolution page 243 (Biology workbook).
Please add to your glossary
Palaeolithic or the “stone age” era
ran between approx 2.6 mya and 10,000 years ago.
This era is further broken down into
- Lower Paleolithic (2.6 mya - 100,000 ya)
- Middle Paleolithic (300,000 – 30,000 ya)
- Upper Paleolithic (50,000 to 10,000 ya)
Abstract thought (a simple definition) reasoning:
thinking that is coherent and logical.
Pick the cultural aspect you want to focus on to make your poster
1. Tools p247-248 (WB), p78-79 (revision book) + handout
2. Fire p244 (workbook), p79 (revision book) + handout
3. Shelter and clothing p248 (WB), p79 (revision book) + handout
4. Food-gathering p248 (WB), p79 (revision book) + handout
5. Abstract thought (communication, language, art)
p234 & p251 (workbook), p79 (revision book) + handout
6. Domestication of plants and animals
p252 (workbook), p79 (revision book) + handout
Depending on the information made available your
poster should include the following information:
• When was it first thought to have occurred? Provide
approximate date .. Could be in general terms of Lower, Middle or
Upper Paleolithic)
• Details of evidence (for example, charred remains of animals
for ‘fire’).
• What was the cultural significance/advantages?
(for example, clothing better equipped for weather conditions)
• Species specific examples (for example, Homo habilis used
simple stone tools called ‘Oldowan’)
• Other interesting facts