We are proud to say that every part of Natural Math materials is extensively tested with students of different ages and backgrounds. In a typical first round of testing we come up with many teaching ideas for the same topic, then choose among them and modify them according to our students' reactions. This requires many hours of mentor-student contact for each unit to be created. We love to help people learn, and we are always glad to do it. Testers receive the newest Natural Math materials and use them themselves or with students.
Testers receive our materials for free, in exchange of their feedback.
The questions will be sent together with passwords. It is better to answer questions right after the unit is used. We will expect answers in no more than two month. We understand that some children will not be interested in some parts of units or in some units. In such a case, we ask and urge mentors not to force the child to use the unit.