9.1 – Points, Lines, and Planes Grade 4

Math Vocabulary A point is an exact location in space. A line is a straight path of points that goes on and on in two directions. A plane is an endless flat surface.

Math Vocabulary – Pairs of Lines Parallel Lines – never cross and stay the same distance apart. Intersecting Lines – pass through the same point. Perpendicular Lines – intersecting lines that form square corners.

Practice Name four points: Name four lines: Name two pairs of parallel lines: Name two pairs of perpendicular lines:

Practice What geometric term could you use to describe the top and bottom sides of a desk? What geometric term could you use to describe the tip of your pen? What geometric term could you use to describe your math textbook?

Homework Page 196 (#1 – 17)