I now have a bunch of new sheets for our new HSW unit which I’ll be releasing soon. There are a few different styles in there too which gives you a bit of choice.
I have written a new prac sheet for crystallisation for KS3, but it’s a required prac at KS4 so could be useful there too. All pracs available at link
I have written a new practical instruction sheet for the thermal decomposition of copper carbonate for my year 7s (hence imprecision in method). When I made it I was surprised at just how many steps it broke down into – but I suppose that’s the whole point. Let me know any feedback. I haven’t used it yet so would be good to have some thoughts.
I have written extensively about cognitive load in science practicals generally. In short, the sheer number of things going on during a practical massively hinder any learning; however “minds on” you try and train your students to be.
Place in learning sequence:
Students know about atoms/elements/compounds –>
students to be told about chemical reactions and a number of ways to tell they have occurred –>
copper turnings + nitric acid demonstration and discussion –>
Introduce practical –>
Students attempt practical using sheet.
Would appreciate any thoughts/feedback. Soft copy below.