4-W.4 Lines, line segments, and rays

4-W.5 Parallel, perpendicular, and intersecting lines

4-X.5 Identify parallelograms

4-X.6 Identify trapezoids

4-X.7 Identify rectangles

4-X.8 Identify rhombuses

Khan Academy: Shapes

Khan Academy: Recognizing Shapes

Brainpop: Polygons

Khan Academy: Quadrilaterals

Khan Academy: Geometric Terms

Khan Academy: Lines, Line Segments, and Rays