This is the part of the curriculum that is set out to meet requirements for day care Accreditation in Australia anyways.
First, it was a matter of getting used to the Centre's method of collating data. In a Montessori centre, the picture daily diary is not utilized as like normal play based centres, as this promotes product, rather than process.
Having to go through half a dozen observations in different writing styles, evaluate/plan individually, would take at least a minimum of two to two and a half hours just to get acquainted with the system.
Of course, with practice, it may come down to only one and half hours (hopefully).
As they say, the more one plans, the easier the process becomes.
The hardest part is just getting started. Let's pray for the best.