Which candle will go out first when we put the beaker on top? Is it the volume of the stacking candles making the flame go out, or is it the height? Height made a difference. The high candle always went out first with the same volume used up. Why might that be? All big problems for year 8 chemistry.
Friday 23 February 2024
Thursday 22 February 2024
Drop Counter
Using the @Pascoscientific drop counter with the Chemistry sensor, the pH sensor, and the temperature sensor to determine the changes when an Acid reacts with an Alkali.
Wednesday 21 February 2024
Maths Practice
Getting in plenty of Maths Practice. The best way to improve at Maths is to do lots of practice. I have many papers that go back over 40 years, although some of my A-level students struggle with the oldest O-level papers.
Tuesday 20 February 2024
Laplace Apparartus
The Laplace apparatus is an excellent start to electromagnetism. Plug in, and the rod moves. Why is the question? The answer is to motivate students to look up and learn about a topic as we get started. And it always seems to work even for the reluctant.
Monday 19 February 2024
Learning Aseptic Technique
The students are learning to sterilise, make and pour their own plates, ready to pour a culture of bacteria that they can then test with different concentrations of natural antiseptics such as mint and garlic.
Sunday 18 February 2024
First Network
My first Network was at British Shipbuilders teaching on BBC B computers with an Econet Network. Controlling screens and all controlled by a Second Processor Unit on the Master computer.
All the computers had word processor and spreadsheet chips which I had to burn onto EEPROMS using a EEPROM controller.
The BBC computers were linked to a couple of printers , a dot matrix and a daisy wheel printer.
We even had a modem to access Prestel and the early internet. In the days before the web and the browser, we used email and IRC to chat and FTP to access files.
Saturday 17 February 2024
Student Set up
The student set up. A good faster computer i7 with 32Gb RAM, a large disk, a Wacom Tablet screen with Pen, and a monitor. A couple of calculators, one graphic, the other a standard calculator, and access to hundreds of experiments and scientific equipment.
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A level computing 12 Mark questions
Practice planning the 12-mark A-level computing questions. It is not just about getting the facts down but also about organizing them effect...
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Negative feedback is a difficult concept to try and get over so I tried using a balance board and the @pascoscientific smart cart strapped...
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Getting a classic set of results for the titration of NaOH and HCl is not that difficult but it is nice when we can get students to this ...
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Reactions with the different Alcohols to see the change in rate and water for comparison and why not to react with acids. An extra experime...