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iRubric: Area & Perimeter of Triangles rubric
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Area & Perimeter of Triangles
Area & Perimeter of Triangles
Measuring and calculating the area and perimeter of a triangle.
Rubric Code:
UX2BX53
By
archieb
Ready to use
Public Rubric
Subject:
Math
Type:
Assignment
Grade Levels:
6-8
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4
4 pts
3
3 pts
2
2 pts
1
1 pts
Picture of Triangle
4
Picture is drawn neatly and all measurements are included and labeled correctly
3
Picture is drawn, either the measurements or the labels are left off
2
1
Only picture is included.
Area of Triangle
4
Calculation is correct, work is shown, and correct label is included.
3
Calculation is correct, work not shown, correct label on answer.
2
Calculation is correct, work not shown, and wrong/missing label.
1
Incorrect calculation, work may or may not be shown, wrong/missing label.
Perimeter of Triangle
4
Calculation is correct, work is shown, and correct label is included.
3
Calculation is correct, work not shown, correct label on answer.
2
Calculation is correct, work not shown, and wrong/missing label.
1
Incorrect calculation, work may or may not be shown, wrong/missing label.
Difference of Two Triangles
4
Difference for Area & Perimeter between the two triangles is calculated correctly, work is shown, and correct label is included.
3
Calculation is correct, work not shown, correct label on answer.
2
Calculation is correct, work not shown, and wrong/missing label.
1
Incorrect calculation, work may or may not be shown, wrong/missing label.
illustrating proof
4
formula is stated, diagram is drawn, labels are shown,accurate explanation is given accompanied by proper illustration of the concept.
3
formula is stated, diagram is drawn, labels are shown,explanation is given,accompanied by some illustration of the concept
2
formula is stated, diagram is drawn, labels are lacking or incomplete, explanation is incomplete, no illustration of concept
1
only formula and diagram are given accompanied by inaccurate labeling.
Keywords:
area, perimeter, triangle
Subjects:
Math
Types:
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