by W. Daniel Hillis for Physics Today

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Essays on Cost, Buchanan and Thirlby, ed.

In retrospect I realize that in almost everything that we worked on together, we were both amateurs. In digital physics, neural networks, even parallel computing, we never really knew what we were doing. But the things that we studied were so new that no one else knew exactly what they were doing either. It was amateurs who made the progress.

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in the Sumerian city-state of Lagash.

Owing to the problems which a growing population of overweight people cause for the health care system, some people think that the key to solving these issues is to have more sport and exercise in schools. In my opinion, I completely agree that this is the best way to tackle the issue of deteriorating public health in relation to weight.

Reprinted with permission from . Copyright 1989, American Institute of Physics.

"Yeah," he sighed, "that bugs me sometimes too. But not so much as you think." And after a few more steps, "When you get as old as I am, you start to realize that you've told most of the good stuff you know to other people anyway."

What chapter are you referring to?

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Hi Liz,
I got confused with this question: Do you think this is a positive or negative development?
Should I write 1 body paragraph about the advantages, 1 for disadvantages and state my opinion whether it is positive or negative in general?
Or should I give 2 reasons in 2 body paragraph to support one side only? (just like the agree/disagree structure)?
Thanks in advance 🙂

Hi, I'm Liz. Welcome to my IELTS tips, model answers and practice

No more than three words means one word, two words, three words but not four. Please see my 25 tips for listening on the main listening page.
All the best

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There is no word limit for any paragraph but as the introduction only needs two statements, it is usual to write only around 40 to 50 words. Writing more isn’t really worth the time or effort. Paraphrasing is about changing word order, active to passive, noun to adjective etc.
All the best

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Thank you for sharing so much information about IELTS. Your method of explaining things is very effective.
I wanted to ask if it’s okay to write over 50 words in the introduction in task2 writing. Would there be any negative marking for going beyond that limit?
Also, I would like to know if you can just simply change active to passive or viceversa to paraphrase along with keeping a few original words as it is to write background statement?

Yes, that’s right. You answer each question.

All parts of your opinion must be explained in detail in the body paragraphs. you would have one body paragraph explaining why you support the use of phyiscal edu in school and then a second body paragraph about the need for a better diet. Always organise your ideas logically into paragraphs.

Hello Liz. Thank you for all your free lessons.

Hello Liz! Based on Azza Lil’s question if we add “nevertheless, diet awareness are also essential.” Should we still discuss this in the body paragraphs? Or just focus on the main answer that is whether agree or disagree? If yes, could you tell how are we going to include it in the body?