by Lapp, Douglas A., Nyman, Melvin A., Berry, John S.
Published in International journal of mathematical education in science and technology (01.01.2010)

by Lapp, Douglas A, St. John, Dennis
Published in International Journal for Technology in Mathematics Education (2009)

by Nyman, Melvin A, Lapp, Douglas A, St. John, Dennis, Berry, John S
Published in International Journal for Technology in Mathematics Education (2010)

by Berry, John S, Lapp, Douglas A, Nyman, Melvin A
Published in Teaching mathematics and its applications (01.06.2008)

by Lapp, Douglas A.
Published in The Mathematics teacher (01.02.1999)

by St. John, Denny, Lapp, Douglas A.
Published in Teaching children mathematics (01.11.2000)

by Lapp, Douglas A., Cyrus, Vivian Flora
Published in The Mathematics teacher (01.09.2000)

by John, Denny St, Lapp, Douglas A.
Published in Teaching children mathematics (01.11.2000)

by Lapp, Douglas A., Flora Cyrus, Vivian
Published in The Mathematics teacher (01.09.2000)

by Lapp, Douglas A
Year of Publication 01.03.2001

by Lappi, Douglas A, Evans, Frederick E, Kaplan, Nathan O
Published in Biochemistry (Easton) (01.08.1980)