[Catalist] Human Biology

Thu Mar 5 14:53:25 AEDT 2020

 Hi,I would make the following qualified comment as a semi retired teacher  without having seen either context of question or marking key.I think it is best to retain the traditional left pump / right pump comparison to emphasise the different circuits because a pump usually has both a collecting and a pumping chamber . To emphasise  or examine an appreciation of the synchrony between the  atria and ventricles in the cardiac cycle other terminology or expressions can be adopted.Roland Bartholomeusz.
    On Thursday, 5 March 2020, 11:06:59 am AWST, FLETCHER Kevin [Mt Lawley Senior High School] <kevin.fletcher at education.wa.edu.au> wrote:  

Good morning ,

I am chasing some feedback. I am having a difference of opinion to the marking key of a heart dissection assessment.

The question is:

The heart is known as a double pump. Explain why it is known as a double pump.

The answer key resolves around the atriums contracting being one pump and the ventricles contracting being a second pump.

I see this is true but not the conventional answer to the question.

I feel the answer should be the traditional 1 pump to systemic circuit and 1 pump to the pulmonary circuit.

Or even except both answers?

The assessment is only accepting the first answer – which is why I am having the conflict.

Thoughts …………

Regards,

Kevin Fletcher

kevin.fletcher at education.wa.edu.au

kevin.fletcher at lawley.wa.edu.au
Senior Teacher, Science / Mathematics
Bush Ranger Instructor

Mount Lawley Senior High School

65 Woodsome St Mt Lawley WA 6050

Ph:  Middle School   61 8 9471 0350

Fax: Middle School  61 8 9471 0338

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