I'm not convinced by the gender activation task. Colouring in would activate a different set of skills for me than making something out of lego, and I might take time to adjust to changing task
That's why - of course - they use a control.
Re reading maps 'upside down', given that the orientation of a map is actually completely arbitrary - perhaps some women (for whatever reason) are more focussed on the textual clues in placenames etc? This wouldn't be a factor in any experiment on small children.
Hopefully at some point mapping will be done on screens with the annotations keeping constant orientation while the map rotates (I work with 3 dimensional rotating images and we always keep the labels the right way up!)