Mandatory Lab Ideas, Topic 1.3, Titrations

Last month's post focused on the mandatory lab covered in section 1.2, ‘The obtaining and use of experimental data for deriving empirical formulas from reactions involving mass changes’. This month, I thought I would carry on with this theme and focus on the second mandatory lab found in topic 1.3, namely ‘use of the experimental method of titration to calculate the concentration of a solution by reference to a standard solution’. Personally, I think titrations form the nuts and bolts of the ...

Mandatory Lab Ideas, 1.2, Empirical Formula

As you well know, the IB now tells us that we must carry out up to twelve mandatory labs or skills (I say up to as there is some debate whether 9.1, the application of the Winkler method is mandatory or not and the ‘single replacement labs’ occur twice, in 15.1 and 19.1). So I thought I would focus the next few blog posts on some of these mandatory labs, starting with the first on one the list, namely, topic 1.2, ...

Getting your practical programme together

Hopefully, by now you will have had time to reflect on the new course and start thinking about your practical programme (PSOW). It is my intention of this blog post ot give you some ideas of things you can add to your PSOW. Are you aware of the ten mandatory labs / skills that you are expected to teach your students? These are listed in the guide ….. but they are not very clear. If you look at the biology guide you will ...