This is a model that you are probably familiar with. Kath Murdoch has a lot to answer for with this model (all good); we have all probably at one time or another used it and it has served us well… but is it still relevant???
“Articulating a model or framework for the process of inquiry is a helpful way to support and guide our practice. The intention of the ‘cycle’ is to guide the teacher’s (and learner’s ) thinking beyond simply coming up with ‘activities’ and towards a more thoughtful process that assists students to move from the known to the new.” (Busting some myths about ‘the inquiry cycle’…. Murdoch, K. 2013 @ http://justwonderingblog.com)