iRubric: Special Plans for a Special Someone rubric

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Special Plans for a Special Someone

Scholars will create a system of two equations that accurately models given situation. The equations for the systems must be written in Slope-Intercept Form. The systems must be solved algebraically, in table form and graphically. The system must be solved algebraically showing all work for full credit. Finally, the modeled system must explain the real world meaning of the solution, maximum cost and what makes the system a Special System for their special someone.

Rubric Code: YCA4X8

By sdorrantbal

Ready to use

Public Rubric

Subject: Math

Type: Assessment

Grade Levels: 9-12

Special Systems of Equations System with a unique solution
	Excellent 10 pts	Good 7 pts	Fair 3 pts	Poor 0 pts
Accuracy of equation The equation written to model the given situation for the systems is written in slope-intercept form.	Excellent Both equations are written accurately.	Good One of the equations are written accurately.	Fair Half of one of the equation is written accurately.	Poor None of the equations are written accurately.
Graph for the system of equation The system of equations is graphed accurately	Excellent Accurate line graphs exist for the equations.	Good Accurate line graphs exist for one of the equations.	Fair Accurate line graphs exist for some parts of one equation.	Poor No accurate line graphs exist for the equations.
Accurate solutions algebraically	Excellent Accurate answers are given for both systems with appropriate work shown.	Good Accurate answers are given for one system with appropriate work shown.	Fair The solution of 1 system is incorrect or appropriate work is not shown.	Poor The solution of both systems is incorrect or appropriate work is not shown.
Explanation For each system, thoroughly explain what makes the system special. Be sure to discuss elements of the graph and the equations that contribute to the system being a special system.	Excellent The response correctly defines what makes BOTH system special.	Good The response correctly defines what makes ONE of the systems special.	Fair The response does not correctly define what makes the systems special.	Poor No reason is given.
Writing Mechanics -Answers in complete sentences. uses -Correct spelling, punctuation, grammar & capitalization.	Excellent All elements are accurate.	Good There are less than 3 errors.	Fair There are between 3 and 6 errors.	Poor There are more than 6 errors.
Table of value The table shows the cost of plans with various minutes	Excellent Accurate table of value to show all costs of the plan up to $15	Good Three or two errors in the table of values for the plan	Fair Four or more errors in calculations in the table or value	Poor No table of value to show the cost of the plan at differing values
Correctly labeled intersection The price point where both plans will cost the same price must be labeled clearly in the table, in the equation and on the graph	Excellent The solution point is clearly labeled in the table, in the algebra work and on the graph	Good The solution point is only labeled on two of the required areas	Fair The solution point is only labeled on only one of the three required areas	Poor The solution point is not identified
Neatness All parts of the work is neat and easy to read	Excellent All parts of the assessment is neat and easy to read	Good Most parts of the assessment are neat and easy to read	Fair Few parts of the assessment is easy to read	Poor Not neat or easy to read

Keywords:

linear systems

Subjects:

Math

Types:

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