2Scheaffer,Richard L. Statistics in the schools: The past, present and future of the quantitative literacy project [J]. Proceedings of the American Statistical Association from the Section on Statistical Education. 1988.11-78.
3Russell, Susan Jo & Friel, Susan N. Collecting and analyzing real data in the elementary school classroom [J]. In P.R. Trafton & A.P. Shuhe (Eds.), New directionsfor elementary school mathematics .1989 , (pp. 134-148). Reston, VA: National Council of Teachers of Mathematics.