When I return the book to the library etc., I take all my record cards out and put them in a little perspex index box.

Sometimes I use the record cards to then start some more detailed notes in a notebook; sometimes the record cards refer to a page in my notebooks where I've attempted a derivation etc.

The NRICH material is really good: https://nrich.maths.org/teachers/early-years

There's some NRICH funded research that showed that exposure to symmetry and reasoning at this level was much more predictive of future abilities than numbers and counting. I think when parents try and help at the early stages, they often try to e.g. get their kids to count to 100, which is conceptually identical to counting to 10.

For number fluency there is the free White Rose '1 minute maths' app, which does a very nice job of gamifying subitising & etc. A lot of primary schools in London seem to have adopted the White Rose teaching resources. https://whiteroseeducation.com/1-minute-maths

There is also https://parallel.org.uk/ by Simon Singh, but this is aimed at ages ~10+.

The book by Rozhkovskaya has some really nice activities in it. https://www.amazon.co.uk/gp/product/1470416956

The book by Zvonkin described in the article is a very good motivator, particularly for the honest descriptions of lessons gone badly wrong, and staying up late cutting out pieces of cardboard! But it's quite difficult to use as a teaching resource.

(For those new to Pico-8, hit 'esc' from the Lua console to bring up the editor tools, then click on the icon in the top right.)

So you can't state from your data that it has got safer: you need the child deaths/km or deaths/hr walking.

I suspect this is occurring because the (sonic) flow through the nozzle cools as it expands, therefore the speed of sound drops, making the same flow now supersonic in the cooled gas.

https://www.youtube.com/watch?v=VESMU7JfVHU

You need to do this after the pot has cooled enough that the aluminium won't burn your lips, but soon enough that the coffee grounds haven't continued to swell and wedge themselves in place.

Similarly I would imagine there would be a lot of oil in the sea, if suddenly all the oil rigs and refineries were instantly abandoned.

This is quite a different situation to traditional scientific computing.

In the UK (and I believe everywhere with a well functioning research culture), the 'Haldane principle' means that research funding is decided by researchers (not politicians / the civil service). https://publications.parliament.uk/pa/cm200809/cmselect/cmdi...

Funding UK science via the ERC, means you are making use of the network effects for peer review & processes. So the individual funding applications are being reviewed to a higher standard, and better decisions are made about what science to fund.

>This is a minimal package for doing question and answering from PDFs or text files (which can be raw HTML). It strives to give very good answers, with no hallucinations, by grounding responses with in-text citations.