Tutor Niedino: Pri Science Questions and Concepts

[Sun_2010]

:thankyou:


Thanks niedino, quite useful.

[Jennifer]

Niedino:

Hi all,


Its been some time since I last posted. Here are some misconceptions on the digestive system that your child might have.

Gullet: This is an organ that contains quite a few misconceptions.

1. Is it an organ? Yes it is. Many pupils often think that it is just a tube, but it is an organ. It is a muscular tube that pushes food down.

2. There is no digestion in the gullet. True and False. The gullet does not produce digestive juices, so it does not digest food. But the food that goes down the gullet is mixed with saliva and hence, a little digestion does take place in the gullet.

3. The gullet and the windpipe are one and the same. False. The gullet and the windpipe are often seen in rudimentary diagrams as being in the same position, hence the misunderstanding. They are actually different tubes, and there is a flap that prevents food from entering the windpipe during swallowing.

Hope it helps. I'm thinking of setting up a blog for Science misconceptions and sharing as it does take a bit of time for me to do it on a forum. If I do, I'll post up a link here.

Many thanks and would appreciate your efforts in setting the Science blog.

We had a disagreement with the Sc teacher on pt 2. That's when he bluntly told us some classmates' parents who are doctors did not hv an issue with this :roll:

[kitty2]

Niedino:

Hi all,


Its been some time since I last posted. Here are some misconceptions on the digestive system that your child might have.

Gullet: This is an organ that contains quite a few misconceptions.

1. Is it an organ? Yes it is. Many pupils often think that it is just a tube, but it is an organ. It is a muscular tube that pushes food down.

2. There is no digestion in the gullet. True and False. The gullet does not produce digestive juices, so it does not digest food. But the food that goes down the gullet is mixed with saliva and hence, a little digestion does take place in the gullet.

3. The gullet and the windpipe are one and the same. False. The gullet and the windpipe are often seen in rudimentary diagrams as being in the same position, hence the misunderstanding. They are actually different tubes, and there is a flap that prevents food from entering the windpipe during swallowing.

Hope it helps. I'm thinking of setting up a blog for Science misconceptions and sharing as it does take a bit of time for me to do it on a forum. If I do, I'll post up a link here.

Thank you,you're very kind and helpful

[naggo-nitemare]

Ur help is v much appreciated! my DS has no science tuition n sometimes his science concepts may not be correctly understood. Additional help from kind generous angels like urself, will benefit many.

[Vanilla Cake]

Niedino:

Hope it helps. I'm thinking of setting up a blog for Science misconceptions and sharing as it does take a bit of time for me to do it on a forum. If I do, I'll post up a link here.

Hi Niedino,

Just for your consideration if you have the time and energy.
In addition to updating Science misconceptions, is it possible for you to provide model answers for the open-ended P6 Science exam questions from those top schools? How about 2010 P6 Prelim Science papers for a start?

Being a Science school teacher, you understand that PSLE Science is a heavy content based subject and it's the 3rd most difficult subject to score in PSLE exam. The P6 student must learn the correct and answering skills for open-ended questions.Keywords and correct Science concepts must be shown in the OE answers to gain full marks.

Thanks
VC's mum.

[Niedino]

Hi all,


Thanks for the support. Model answers are subjective, and I believe that different Science teachers will have variances in the acceptance of answers. I’ll try to help answer, but please do not take my answers as the "golden standard" as I’m learning from all here.

VC’s mum, no offense, just an interesting point to note, 3rd most difficult subject to score also means 2nd easiest subject (since there are only 4 subjects). FYI, the new science syllabus will focus more on process rather than content.

About point number 2, it is generally accepted in by many teachers that there is "no" digestion in the gullet as the amount of digestion is very little and is caused by saliva produced and mixed earlier in the mouth. What you can teach your children more importantly is that there are no digestive juices produced in the gullet.

Hope it helps
Hope it helps

[watmekiasu]

:thankyou:


Looking forward to more input from you.

[Herbie]

Hi ned, can advise wat u mean by process and not content? Tx

[Faun]

Looking forward to your website. Thanks!

[snowman.022851697]

Thanks for the tips niedino ((: