1. Grade Seven – Pre-Algebra - Unit 9
Mathematics
Grade Seven – Pre-Algebra - Unit 9
Content Vocabulary:
Adjacent angle
Alternate interior angles
Angle bisector
Complementary
Congruent angles
Congruent figures
Corresponding angles
Parallel
Perpendicular bisector
Perpendicular lines
Polygon Supplementary
Reflection Symmetry
Rotation Translation
Segment Vertical angles
Spatial Thinking
Essential Understandings:
Geometry and Measurement-
name basic geometric figures
recognize intersecting lines, parallel lines, and skew lines
identify adjacent and vertical angles
relate angles formed by parallel lines
classify triangles and quadrilaterals
use “draw a diagram” as a problem solving strategy
identify congruent triangles
find the circumference
create circle graphs
construct a segment or an angle congruent to a give segment or angle
describe and graph translations
identify lines of symmetry
graph a reflection or rotation of a geometric figure
identify rotational symmetry