A TAAP - University of Arkansas at Monticello

PART II Geometry Released Items––April 2007
GEOMETRY OPEN-RESPONSE ITEM E
ARGM05R0401Y426-426CR
E. Jessica is making a window ornament from pieces of stained glass in the shapes of rhombi and triangles.
Jessica begins the ornament with four rhombus-shaped pieces arranged at equal rotations around a center
point, as shown below.
1. The smallest angles of each rhombus piece measure 30 degrees. In your answer document, draw one
of the rhombi pieces and label all of its angle measures. Show all of your work and/or explain your
answer.
Next, Jessica places triangular pieces between the rhombi pieces, connecting the vertices formed by the
largest angles of each rhombus, as shown below.
2. In your answer document, draw one of the triangular pieces. Label all of its angle measures. Show
all of your work and/or explain your answer.
BE SURE TO LABEL YOUR RESPONSES 1 AND 2.
RUBRIC FOR GEOMETRY OPEN-RESPONSE ITEM E
SCORE DESCRIPTION
The student earns 5 points. The response contains no incorrect work. The label of “degrees”
4 or “°” is included somewhere in the response. An explanation of why the measures of the
center angles of one triangle + one rhombus = 90° is included in Part 2.
3 The student earns 4 points.
2 The student earns 2–3 points.
1 The student earns 1 point, or some minimal understanding is shown.
0 The student earns 0 points. No understanding is shown.
Blank––No Response. A score of “B” will be reported as “NA.” (No attempt to answer the
B
item. Score of “0” assigned for the item.)
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