How can learning be measured?

Using testing works
for me only when you consider the 'value added' aspects: where a student starts from, targeted
teaching to improve from this point then final testsing to assess the progress. This only works
when aspects of a subject, eg a spelling pattern in English, are measurable. I rely on the
holistic approach as a better indicator. I have begun using a half-year review with students and
a portfolio approach to allow me and the student to see how they have developed across all areas
of my subject.