After building the model myself, I have found tab and slot construction
rather tricky for students. I do not cut slots, I bend the tabs
and glue them to the marks for the slots. Where small tabs are to
go through slots in a larger tab, I cut off the small tabs and glue the
large one. I find tweezers (dissecting forceps) useful in holding
the tabs while glue sticks on small pieces like the thrusters. In
place of dowel, I find skewers from the supermarket work well.