High Impact Teachers provides exclusive access and training to an innovative, leading-edge application that automates the analysis and interpretation of Guttman Charts. Research suggests that learning is most likely to occur when students are taught in their Zone of Proximal Development (ZPD). Professor Patrick Griffin and the team at the Assessment Research Centre from the University of Melbourne have published a process which enables teachers to manually create Guttman charts using Excel to locate students' ZPD.ZoneFinder 1.0 has taken this process to the next level by automating these largely manual functions which involve creating and analysing Guttman charts. This analysis enables teachers to identify students' Zones of Actual Development (ZAD) and what they are ready to learn next (ZPD). With ZoneFinder 1.0, determining the ZPD for students is as easy as clicking a button. Learner readiness reports are also seamlessly generated which allows educators to differentiate their work to target their teaching at each student's point of readiness to learn. User licencing for ZoneFinder 1.0 is available to individual treachers as well as schools.