Maxima attends an event at a school for children with disability (Dorstenberg, Netherlands).
If this event happened today it is probably linked to the Koningsspelen (Kings games).
The Koningsspelen is a sporty Orange fest for all children in the basisonderwijs (similar to elementary school; age 4 - 12) in the Netherlands and the Caribbean Dutch area.
The first Koningsspelen were organized in 2013 in honor of the inauguration of King Willem-Alexander. Since this 1st edition more than a million children and about 5400 basisscholen participate in the Koningsspelen.
The aim of this sporty day is to show children how important and fun it is to have breakfast together (is included in this event) and to exercise together. In 2016 the Koningsspelen take place on April 22.