To help users experiencing difficulties in running theonlineversion we created this version of the application Intheapplication there are virtual measurement tools that the usercanuse both to learn how to measure and practice. The userreceivesfeedback from the application, and knows whether readingthemeasured value correctly or not The application simulates: -avernier caliper with the 1/10, 1 / 20,1 / 50 precision andshowsthe user how to read the measured value. - vernier caliper1/128" -Micrometer 0-25mm , accuracy 0,01; -Dial caliper; ,accuracy 0,02;- Micrometer 0,01, - external dial instrument -Dialindicator Theapplication is educational, not used for effectivemeasurement. Ithas a very similar interface to real instruments,and is very easyto use.