21 july 2011
added zoom for close up view of the vernier scale on the main scale
some teacher feedback that in secondary 1 and 2 (grade 7 & 8 ) the students are expected to answer in cm.
i may have to create cm drop-down options/version as well ?!!?.
i suggested that to teach 10mm = 1.0 cm would have been an easier way and to prepare students for real world, mm should be explained instead of the cm answers.
It is rather painful to add cm to all the possibilities of the simulation now that it is rather complex, with hints and answers all in mm