In order to do this we need to look back at the data we collected before the invention. Having robust data before implementing and intervention.
By looking at this data you can identify change or shift of the learners. Then make a link to the changes you made in your teaching. This however is not enough, we need to make comparisons with the norm or other data sets (this could be another class, last years year 3, children not in the inquiry group). Children get better under normal teaching conditions so comparing to other data sets can show significant shift.
This table shows a way of showing pre and post data. This could be done for both data sets and allow for great comparison.
When looking at number you can easily compare these however not all evidence is data.
talk about the what in detail, how do you know they were disengaged, struggled to spell etc. Why is it the biggest success.