# 1. Lines, Rays and Line Segments

Identify and distinguish between lines, rays and line segments. This is the first time that students will encounter these terms; even though they would have seen line segments in various two dimensional figures.

### Common Core Alignment

**4.G.1**Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.