Geometry and Spatial Sense: Parallelism

Parallelism: Two lines are parallel provided they do not intersect and once can be transformed to the other by a sequence of translations or slides.

| Symmetry | Reflection/Flip | Translation/Slide | Rotation/Turn | TanTrans | Congruency | Dilation/Scaling | Similarity | Tesselations | Perpendicularity | Parallelism |

| Overview | The Standards | Importance | Major Concepts | Sample Lessons | Web Links | Commerical Software |