by For the Education of Young Children, National Association, Of Teachers of Mathematics, National Council
Published in Educación matemática en la infancia (30.06.2013)

by National Research Council, National Council of Teachers of Mathematics and Mathematical Sciences Education Board, Center for Science, Mathematics, and Engineering Education
Year of Publication 23.09.1998

by Cobb, Paul
Published in Journal for research in mathematics education (01.11.1996)

Published in Journal for research in mathematics education (01.07.1991)

Published in Journal for research in mathematics education (01.07.1990)

by Laud, Leslie E
Year of Publication 2011

Published in National Council of Teachers of Mathematics (12.09.2006)

by Leinwand, Steven, Brahier, Daniel, Huinker, DeAnn
Year of Publication 2014

by Fennell, Francis
Published in National Council of Teachers of Mathematics (08.03.2011)

by Fosnot, Catherine
Published in National Council of Teachers of Mathematics (15.09.2010)

by Kanold, Timothy D
Year of Publication 2012

by Otto, Albert, Caldwell, Janet, Hancock, Sarah Wallus, Zbiek, Rose Mary
Published in National Council of Teachers of Mathematics (15.04.2011)

by Sachs, Leroy, Ed
Year of Publication 1984

by Stenmark, Jean Kerr, Ed
Year of Publication 1991

Published in International Reading Association (2006)

by Litwiller, Bonnie, Ed, Bright, George, Ed
Year of Publication 2002

by National Research Council, National Council of Teachers of Mathematics and Mathematical Sciences Education Board, Center for Science, Mathematics, and Engineering Education
Year of Publication 07.01.2000

by Kenney, Margaret J., Ed, Hirsch, Christian R., Ed
Year of Publication 1991

by Rubenstein, Rheta N., Ed
Published in National Council of Teachers of Mathematics (01.04.2004)

by National Research Council, National Council of Teachers of Mathematics, Division of Behavioral and Social Sciences and Education, Board on Science Education, Center for Science, Mathematics, and Engineering Education
Year of Publication 07.01.2000