Hello Ananas,

A good starting point would be the Buros Center for Testing (buros.org). This is the group that publishes Tests in Print, and the Mental Measurements Yearbook both in electronic and print form.

Good luck with your work.

By contents evaluation and constant feedback in order to check the child progress.

Not sure what the question is getting at.

Regarding mathematics, it is just arithmetic at primary grade. This involves skills like:

Addition and subtraction,

Multiplication and division,

Fraction of some number,

Fractions and percentages,

etc.

And some word problems involving the above skill.

It is easy to devise tests to evaluate the level in each of the above skills.

As regards language, the primary grade is just to be able to read simple descriptive essays, and simple children's poems. The vocabulary is determined by the prevailing essays and poems for primary grades. A good level to achieve is to be able to superficially read the local newspapers. Superficially in the sense that technical material discussed in the newspaper is not required; such as politics, economics, scientific terms, etc.