Maddox, L. E., Howell, J. B., & Callahan, C. C. (2020). Wise-Practice Use of Visual Primary Sources: Towards a More Interactive Presentation of Content81(1), Article 3. 

Callahan, C., Howell, J. B., & Maddox, L. E. (2019). Selecting and designing visual curriculum materials for inquiry-based instruction. Social Studies Research and Practice14(3), 321-334.

Maddox, L. E., Howell, J. B., & Saye, J. W. (2018). Designing geographic inquiry: Preparing secondary students For citizenship. Journal of Geography,117(6), 254-268.