Narrow Test, Narrow Teaching (In England this time)

The BBC reports here on a new Cambridge study with a concern I understand:

The report says inadequacies in the primary curriculum stem from a mistaken belief that breadth in the curriculum is incompatible with improved standards in the "basics" of maths, literacy and numeracy.

History, geography, science and the arts have been "squeezed out", it argues.

The report's authors suggest learning in primary schools is skewed towards subjects which are formally tested in the national tests, used to draw up league tables.