No, this is a black and white sketching class that uses black and grey fine liners and brush pens. If you're interested in learning Ian's watercolour techniques, then check out our range of urban sketching courses here, which all cover watercolour in considerable depth.
However, as Ian explains in the course, sketching in black & white from time to time is good practice. It helps you to develop other skills that are forced to come into play to compensate for a lack of colour.
Sketching in black & white is also ideal for those situations when you simply don't have a lot of time to draw.