Geometry (& GT)
Overarching Standards
Instructional Note: The following standards should be emphasized throughout all units of instruction. These standards should not be taught in isolation.
What will my child learn?
Students will:
Experiment with transformations in the plane.
G.CO.A.1
Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.
Apply geometric concepts in modeling situations.
G.MG.A.1
Use geometric shapes, their measures, and their properties to describe objects (e.g., modeling a tree trunk or a human torso as a cylinder)
G.MG.A.2
Apply concepts of density based on area and volume in modeling situations (e.g. persons per square mile, BTUs per cubic foot).
G.MG.A.3
Apply geometric methods to solve design problems (e.g., designing an object or structure to satisfy physical constraints or minimize cost; working with typographic grid systems based on ratios).
Students will:
Experiment with transformations in the plane.
G.CO.A.1
Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.
 Check for Understanding: Geometric Definitions
 Review/Rewind: Lines, Rays and Segments Intro
 Enrichment Tasks: Defining Parallel Lines  Defining Perpendicular Lines
Apply geometric concepts in modeling situations.
G.MG.A.1
Use geometric shapes, their measures, and their properties to describe objects (e.g., modeling a tree trunk or a human torso as a cylinder)
 Check for Understanding: 2D Geometric Models
 Review/Rewind: Surface and Volume Density
 Enrichment Tasks: Toilet Roll  How Thick is a Soda Can II?
G.MG.A.2
Apply concepts of density based on area and volume in modeling situations (e.g. persons per square mile, BTUs per cubic foot).
 Check for Understanding: Surface and Volume Density Word Problems
 Review/Rewind: Density Word Problem
 Enrichment Tasks: A Ton of Snow  Indiana Jones and Golden Statue
G.MG.A.3
Apply geometric methods to solve design problems (e.g., designing an object or structure to satisfy physical constraints or minimize cost; working with typographic grid systems based on ratios).
 Check for Understanding: 2D Geometric Models
 Review/Rewind: <Insert title/link here>
 Enrichment Tasks: Ice Cream Cone  Satellite
What are some signs of student mastery?

Tools & Technology
GeoGebra is a dynamic math software tool that allows users to explore geometry, algebra, tables, graphing, statistics and other areas of math in one easytouse package. It can be downloaded for FREE on a computer or tablet device. Math Open Reference  a free interactive tool that allows students to explore the area and perimeter of rectangles on the coordinate plane. 
More 4 U
Looking for some clarification on some of the vocabulary used in the Geometry course? A slight variation in units, click here to download the MD State Department of Education's (MSDE's) geometry glossary. 