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Unformatted text preview: Are dinosaurs cold-blooded or warm? What did you learn in school? From books? Dinosaur ectothermy (cold-bloodedness) remained a prevalent view until Robert T. "Bob" Bakker, an early proponent of dinosaur endothermy (warmbloodedness), published an influential paper on the topic in 1968. More recently, dinosaur endothermy has become the consensus view, and debate has focused on the mechanisms of temperature regulation. - (Wikimedia Foundation, 2007). What's this dinosaur? Did you say Brontosaurus? In 1903, it was discovered that Brontosaurus excelsus was in fact an adult Apatosaurus and the name Apatosaurus, having been published first, was deemed to have priority as the official name; Brontosaurus was relegated to being a synonym. In the 1970s, it was proven that the traditional "Brontosaurus" image known to all was, in fact, an Apatosaurus excelsus with a Camarasaurus head incorrectly placed on its body. Apatosaurus reconstruction based the correct skull (Wikimedia Foundation, 2007) 1 of 10 Obsolescence as a Barrier to Effective Education Barriers to Effective Education
Equity Accountability Mobility Obsolescence 2 of 10 New England Primer 100 years without revision since it's first edition in 1690 3 of 10 The concept of the "half life" of knowledge
Half of the knowledge is obsolete after its "half life" Knowledge of the brain Baseline knowledge of the brain in 1970 4 of 10 Knowledge of the Brain (Cont.)
In 1980, 90% of knowledge of brain learned since 1970 In 1985, 95% of knowledge of brain learned since 1980 now???????? Teaching in schools about the brain little change since 1970 5 of 10 Dinosaurs
We first learned of them in mid 1800's Most current knowledge since 1970 warm blooded not cold blooded Living relatives more likely birds than reptiles 6 of 10 The archaic and slow curriculum development process
knowledge becomes known Knowledge becomes agreed upon knowledge is disseminated knowledge is accepted for schools 7 of 10 Curriculum Development Process (cont.)
textbooks are written (who decides what goes in? who writes them?) textbooks are adopted textbooks are in classrooms teachers are trained to use new textbooks This curriculum development process takes 10-25 years 9 of 10 Curriculum Development Process (cont.) The half life of knowledge is 6 mo. to 5 yrs. Result: Schools are required to be obsolete A totally new curriculum development, dissemination, and implementation process is needed A totally new definition of what should be taught and learned is needed We must find ways to add, revise or discard curriculum elements with ease DWA revisits the national (2/3) and local (1/3) curriculum idea ...
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- Fall '08