Student determines the correct discount price for the shoes, writes and solves the inequality correctly, but does not round or rounds incorrectly. 5 a Student demonstrates Student writes a correct some understanding of inequality, 7.EE.B.4b writing an inequality but , to represent the makes an error, such as situation. or subtracting instead of adding. Student demonstrates a Student makes a Student demonstrates a Student solves the b limited understanding of conceptual error in solid understanding of inequality written from solving the inequality solving the inequality. solving the inequality but part (a) correctly, 7.EE.B.4b and interpreting the OR makes one , and determines the solution. Student makes two or computational or one correct number of more computational or rounding error. people by rounding rounding errors. correctly to . c Student demonstrates a Student graphs the Student demonstrates a Student correctly graphs limited understanding of inequality but makes two solid understanding of the solution of the graphing inequalities by or more errors. graphing an inequality inequality from part (b). 7.EE.B.4b only plotting the point OR but makes one error An appropriate scale is correctly. Student makes a such as an open circle, provided, clearly conceptual error such as an incorrect scale, a showing and . A closed graphing on a coordinate circle placed in the circle is shown at plane instead of a wrong area, or an arrow approximately , a little number line. drawn in the wrong less than , and an arrow direction. is pointing to the left. 6 a Student demonstrates a Student makes a Student writes a correct Student clearly defines limited understanding, conceptual error such as expression but does not the variables and writes such as indicating a sum, finding the difference of define the variables or an expression such as , 7.EE.B.4 but the variables are not all the costs of does not define them with appropriate work clearly defined, and the admissions. correctly, such as shown. The definition of expression is left without OR represents the 3D the variables must collecting like terms. Student does not write admission and indicate the cost of each an expression to find the represents regular. The admission. total cost. Instead, the variables need to student leaves each specifically indicate the admission as a separate cost. expression, and . OR Student makes one computational error in collecting like terms. OR Student clearly defines the variables correctly but makes one mistake in the expression, such
Student determines the correct discount price for the shoes, writes and solves the inequality correctly, but does not round or rounds incorrectly. 5 a 7.EE.B.4b Student demonstrates some understanding of writing an inequality but makes an error, such as or subtracting instead of adding. Student writes a correct inequality, , to represent the situation. b 7.EE.B.4b Student demonstrates a limited understanding of solving the inequality and interpreting the solution. Student makes a conceptual error in solving the inequality. OR Student makes two or more computational or rounding errors. Student demonstrates a solid understanding of solving the inequality but makes one computational or one rounding error. Student solves the inequality written from part (a) correctly, , and determines the correct number of people by rounding correctly to . c 7.EE.B.4b Student demonstrates a limited understanding of graphing inequalities by only plotting the point correctly. Student graphs the inequality but makes two or more errors. OR Student makes a conceptual error such as graphing on a coordinate plane instead of a number line. Student demonstrates a solid understanding of graphing an inequality but makes one error such as an open circle, an incorrect scale, a circle placed in the wrong area, or an arrow drawn in the wrong direction. Student correctly graphs the solution of the inequality from part (b). An appropriate scale is provided, clearly showing and . A closed circle is shown at approximately , a little less than , and an arrow is pointing to the left. 6 a 7.EE.B.4 Student demonstrates a limited understanding, such as indicating a sum, but the variables are not clearly defined, and the expression is left without collecting like terms. Student makes a conceptual error such as finding the difference of all the costs of admissions. OR Student does not write an expression to find the total cost. Instead, the student leaves each admission as a separate expression, and . Student writes a correct expression but does not define the variables or does not define them correctly, such as represents the 3D admission and represents regular. The variables need to specifically indicate the cost. OR Student makes one computational error in collecting like terms. OR Student clearly defines the variables correctly but makes one mistake in the expression, such Student clearly defines the variables and writes an expression such as , with appropriate work shown. The definition of the variables must indicate the cost of each admission.