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songlines: oral history and memory may fade (chinese whispers).
Compass / sextant: hard to use and requires celestial mapping and accurate clocks
GPS: requires massive external infrastructure

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Children are constantly evolving at different rates and amounts. The teacher needs to address short cycle formative assessment to keep on target with learning...so I guess you need to recalibrate the sextant constantly

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Children are constantly evolving at different rates and amounts. The teacher needs to address short cycle formative assessment to keep on target with learning...so I guess you need to recalibrate the sextant constantly

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you are following a measured instruction in the compass and GPS, sextant ... 

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you are following a measured instruction in the compass and GPS, sextant ... 

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Songlines are integral to First Nations spirituality

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easier but not engaging nor challenging

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All require knowledge and understanding of how to use the tools

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All require knowledge and understanding of how to use the tools

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Knowledge is required to navigate the understanding.

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if you don't speak the language you don't understand it.
if you don't know how to use a compass or sextant they are not helpful
you need to understand coordinates for gps

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Get you where want to go,usually, constraint is not always correct (other factors) eg rough seas, storms

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Get you where want to go,usually, constraint is not always correct (other factors) eg rough seas, storms

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Need to know what result it would give you and if that is actually the result you are looking for

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prior knowledge is required to use all of them well

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prior knowledge is required to use all of them well

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Used correctly each provides direction, can be used to set a course.  Reflects diverse understandings and world views.

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Used correctly each provides direction, can be used to set a course.  Reflects diverse understandings and world views.

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The songline affords a social structure but is constrained by the language

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The songline affords a social structure but is constrained by the language

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Sextent and compass are affected by magnets

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Sextent and compass are affected by magnets

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an understanding of how it works is required

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an understanding of how it works is required

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GPS doesn’t help you remember the way like songlines might

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GPS doesn’t help you remember the way like songlines might

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Compass will point differently over time due to changes in Earth's magnetic field.

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Compass will point differently over time due to changes in Earth's magnetic field.

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Each requires a different skillset to use

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Each requires a different skillset to use

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requires technology for a GPS, you need to know how to use a compass

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You have to have the tool and know how to use if for it to be useful

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You have to have the tool and know how to use if for it to be useful

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Don’t allow me to make my own path

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songlines are difficult to maintain and could be destroyed

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songlines are difficult to maintain and could be destroyed

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Without the knowledge of how to use the tool, it is useless.

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Without the knowledge of how to use the tool, it is useless.

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Caters to different cultural and ethnic backgrounds

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Songlines would be passed orally so only know about if you are part of that community.

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The simpler the technology is to use, the faster it can be implemented for a specific purpose but the less knowledge, understanding an expertise the user gains through its implementation.

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gps requires power and access to a satellite network

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gps requires power and access to a satellite network

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They rely on external factors in order to work.

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They rely on external factors in order to work.

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GPS requires technology, songline requires human resources.

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GPS requires technology, songline requires human resources.

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Clear skies

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If you don't know how to read it you'll get lost

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If you don't know how to read it you'll get lost

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Open possibilities