Top Tips for the Teacher (2)

Stuck for some IA labs to assess in the DCP and CE categories? Try using these ideas to plan some labs: •How much Iron in an Iron Tablet – Redox Titration •Determine conc. of Hydrogen Peroxide – Redox Titration •Determine the formula of a complex ion (colorimetry) •Molecular mass of a volatile liquid •Heat of combustion of alcohols •Calculate the enthalpy of solution •Determine the activation energy of a reaction

IA DCP aspects 2 and 3

I would now like to focus on what is required for DCP aspects 2 and 3 from the comments I have collated from the OCC website including subject reports and moderated material. When processing raw data it is important that a sample calculation is included in the report unless a student carries out the T-test or standard deviation for which programs exist on such things as excel or a scientific calculator such as the Ti83/84. For such examples as these students ...

IA DCP Aspect 1

Following on from my last blog I would now like to focus on Data Collection and Processing, aspect 1. When collecting data it is understood by moderators that it can be difficult to collect sufficient data (including repeats) within ones own experiment. To that end students are allowed to use class data given the proviso that: The student clearly presents their OWN data or alternatively clearly identifies that which is pooled. The student MUST plan and produce their own data table. ...