Evaluation :
Sensible content structure, and clear separation of basic mathematical skills (different workbooks).
The teacher's guide contains well-thought-out statements concerning the rationale, selection and presentation of topics: a proposal for the distribution of the content over the school year, statements concerning differentiation / individualisation, a selection of motivating lessons (""to gather experiences"") to be distributed over the school year by the teacher.
The material is highly flexible as teachers can easily choose from many resources.