The basic 5 step technique is useful with teenagers at revision time. Light weight, easy to remember, they seem to like the kitchen timers (I use &#x27;pound shop&#x27; clockwork ones except you can&#x27;t get them in pound shops any more).<p>[1] <a href="http:&#x2F;&#x2F;g.fastcompany.net&#x2F;multisite_files&#x2F;fastcompany&#x2F;imagecache&#x2F;inline-large&#x2F;inline&#x2F;2015&#x2F;11&#x2F;3053036-inline-buffer2.jpg" rel="nofollow">http:&#x2F;&#x2F;g.fastcompany.net&#x2F;multisite_files&#x2F;fastcompany&#x2F;imageca...</a>