TI-Nspire CX Mini-Tutorial: Parallel and Perpendicular Lines Grade: 4 - 8 Copyright Year 2012 Format MP4
INSTRUCTIONAL RESOURCE: Nspire App Tutorial: Parallel and Perpendicular Lines Grade: 4 - 8 Copyright Year 2013 Format HTML5
Closed Captioned Video: Geometry Applications: Transformations, Segment 3: Rotations, Reflections, and Symmetry. Grade: 4 - 8 Copyright Year 2020 Format HTML5
