The fourth LTB-video demonstrates uses of LTB in different contexts of construction work.
Firstly we meet apprentice Arnold who manages the heavy excavator with the usual clicks and with some further instructions. These instructions he gets via a QR-tag which he reads with his smartphone. Then we meet apprentice Martin who gets instructions, how to use the QR-scanner of the Learning Toolbox. Finally trainer Markus shows how the manufacturers of scaffolds inform their clients of the instructions currently. His proposal is to add QR-tags that can be accessed with the QR-scanner of the Learning Toolbox.