A video of the Dronten demonstration is here.
Today, teachers have been on strike everywhere in the Netherlands. The government does not employ enough teachers, meaning primary school children are in overcrowded classes. So far, the Dutch government refuses to employ more teachers, claiming they are a caretaker government and there is no new government after the elections yet. There is a quarrel between the government coalition political parties on this issue.
Today, there is a big demonstration against government education policy in The Hague.
Elementary school teachers are to strike May 30 in the southern provinces of the Netherlands, as part of a wave of working class struggles that brought the number of strike actions in the small country to 32 in 2017, the highest number since 1989: here.