The Dutch approach reminded me of P4C:

http://www.philosophy4children.co.uk/

Findings on this approach to teaching, include:

- 88% of Year 6 children improved on their predicted grade in Key Stage 2 SATs, with 94% achieving or exceeding their predicted grade

- 26% of children who took part in P4C throughout the project achieved level 5 in reading, with a further 69% achieving level 4

- 62.5% of children exceeded the teacher's prediction in Key Stage 2 Maths SATs, with 24% achieving level 5 and 64% achieving level 4. The focus class exceeded the national average score of 43% at level 4.

- 51% of the school's pupils were eligible for free school meals and 50% had English as an additional language

https://www.sapere.org.uk/about-us/p4c-research.aspx

But our government are totally following the science.