The teacher chose to collect two types of data. The first set was observations of each lesson and watching the children use the teams platform, and see how they engaged with the different functions in their groups.
The second set of data was from the summative survey of pupils where she asked a set of questions that got each pupil to evaluate their use of the online platform.
The teacher could check one set of data (her observation notes, from the series of lessons with the technology) against the data set of the pupils' use of the technology, from the pupil survey.