**Unpacking an Assessment**

Broken up into two categories: Content Knowledge and Skills

Content Knowledge is *usually* specific to a subject area (topics in Geometry, Algebra, Chemistry, etc.), while Skills are *usually* used across subject areas.

For the first assessment in this Geometry class we identified the following terms as necessary Content Knowledge:

Angle, Angle Measure, Point, Degrees, Line Segments, Proper Geometry Terminology/Symbols, Length, Collinear, Width/Height, Top/Bottom/Left/Right, Endpoint, Midpoint, Coordinates, Grid, Units, Graphing/Plotting

Skills: Naming/Labeling, Locating, Measuring, Explaining (Why), Justify, Compare/Contrast, Find/Solve/Determine, Suppose/Imagine/Assume, Folding.

**Undefined Terms**

These terms have descriptions, but they aren’t considered definitions. In geometry, a defined word needs to be defined in terms of other geometry words.

Point- location or spot in space that has no size. In geometry, this is represented by a dot. Points are named using a single capital, print letter.

Line- object that goes on forever in two directions and has no thickness. Lines are named using two points on the line, or using a single lowercase, cursive letter.

Plane- slice of space that has no thickness and goes on forever in two-dimensions. (Note: Points- no-dimension; Lines- one-dimension). A plane is named using 3 points on the plane, but the points cannot be on the same line, because 3 points on the same line can describe an *infinite* number of planes that go through them. (Imagine 3 points in a line, and show how many different ways the same piece of paper can hit those 3 points). Planes can also be named using a single, capital, cursive letter.

A good resource for explaining this is: http://www.regentsprep.org/regents/math/geometry/gg1/undefinedterms.htm

**Defined Terms**

Collinear- on the same line

Coplanar- on the same plane

Line Segment- Part of a line contained between two points called endpoints. Line segments are named using the two endpoints with the segment symbol above them.