Developing and validating a reliable TPACK instrument for secondary mathematics preservice teachers J Zelkowski, J Gleason, DC Cox, S Bismarck Journal of Research on Technology in Education 46 (2), 173-206, 2013 | 117 | 2013 |

Mathematics teacher roles when using technology S Bismarck Doctoral dissertation]. UGA, 2009 | 3 | 2009 |

Radical Thoughts on Simplifying Square Roots KT Schultz, SF Bismarck Mathematics Teaching in the Middle School 19 (4), 222-228, 2013 | 2 | 2013 |

Activities for Students: Predicting Future Gas Prices Using the Standards for Mathematical Practice SF Bismarck, J Zelkowski, J Gleason The Mathematics Teacher 107 (9), 694-700, 2014 | 1 | 2014 |

Mathematics teacher roles when using technology: understanding the roles of facilitator and mediator S Bismarck University of Georgia, 2009 | 1 | 2009 |

Mathematics Teacher Classified Index Volume 107, Aug. 2013–May 2014 RE Auer, MPKD Deeper, SBWC Team, SF Bismarck, J Zelkowski, ... Future 488, 2014 | | 2014 |

REVIEWERS FOR THE MATHEMATICS EDUCATOR, VOLUME 22, ISSUE K Bennekin, B Rouhani, S Bismarck, L Bleich, M Breed, R Brown, ... The Mathematics Educator 22 (1), 0 | | |