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Ltd. is a creative genius Education Mathematics knock, knock computing power mathematics, mathematical thinking skills to knock the target materials,When parents learn to perform authentication mission to check the childs learning progress of every week, each time an authentication 500P will earn.* All natural materials by a series of knock Education account, you can learn each authentication ssikman times.* Registration materials for teaching of one point from a possible learning certification for four weeks each and every week, learning certificates are available in 5-7 days Car of the Borrower.* You can not learn the authentication of the borrower during the elapsed study crediting period.* Learning the period of its borrowers are learning is complete, processing in excess of seven days to go to the next borrower learning.* Materials authentication is complete, it can not re-register and re-certification.* The one knock teaching each other, if series can be certified learning progress over time of the two, it is impossible if the materials of the same series more than two simultaneous progress.----