"Teachers who desire to increase learners’ ability to understand and learn will also use visuals. Most people will learn better and remember longer when you present ideas by using pictures, maps, word groupings, or other visuals rather than merely speaking" Hakuna Matata
This is an example of low-tech ways to provide customers and employees pricing information. Pricing in plastic quick roll device is faster for some item prices than in a computer. Low tech solutions are also supported Micro-Actions.