Letter to the makers of CCSS and the makers of TIMSS

The US National Governors Association (NGA Center for Best Practices) and the Council of Chief State School Officers (CCSSO) are the makers of the US Common Core State Standards (CCSS).

The CCSS refer to the Trends in International Mathematics and Science Study (TIMSS) (wikipedia).

TIMSS is made by the International Association for the Evaluation of Educational Achievement (IEA) (wikipedia). It so happens that IEA has its headquarters in Amsterdam but the link to Holland is only historical.

I am wondering whether CCSS and TIMSS adequately deal with the redesign of mathematics education.

There are conditions under which TIMSS is invalid.

There are conditions under which TIMSS is incomplete.

See my letter to IEA (makers of TIMSS) and NGA Center and CCSSO (users of TIMSS, makers of CCSS).

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