Given a figure and the description of a transformation (reflection, rotation, or translation), I can draw the figure's image after the transformation.

I can describe the sequence of transformations necessary to take a figure onto another figure.

I can construct linear functions given a graph or two input-output pairs.

I can define reflections and translations in terms of perpendicular lines, parallel lines, and line segments. 

I can define the slope criteria for parallel and perpendicular lines and use them to solve geometric problems.

I can use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.

I can identify angle relationships formed by transversals and solve problems using those relationships.

I can justify theorems about lines, angles, triangles, and parallelograms and use them to solve problems in real world contexts. 

I can justify that measures of interior angles of a triangle sum to 180°. 

I can justify that base angles of isosceles triangles are congruent. 

I can select and use area formulas for triangles and common quadrilaterals to solve real world problems.

I can use coordinates to prove these simple geometric theorems algebraically: lines are parallel/perpendicular, distance between two points.

I can experiment with dilations to describe and verify their effects on lines and line segments within a polygon.

I can use transformations and similarity theorems (AA~, SAS~, SSS~) to determine whether two triangles are similar.

I can solve problems involving similar polygons.