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Cherokee County Schools

Mathematics Course of Study

Grade 8

(Pre-Algebra)

         

 

Students in Grade 8 are independent thinkers.  They can apply prior knowledge to new situations but may need to be guided through the learning process by continuing the use of hands-on materials, mathematical discourse, and technology.  These students have the ability to take ownership of their own mathematical learning and need opportunities to explore and investigate mathematical concepts.  Students in Grade 8 also need to be provided with instruction that includes a balance between skill development and mathematical understanding.

 

The major focus of the eighth-grade curriculum is the integration of new and prior knowledge to solve problems dealing with all mathematical strands, with particular emphasis on algebra, geometry, and proportional reasoning.  This curriculum offers a more in-depth study of algebraic concepts than in years past.  Therefore, this course is subtitled Pre-Algebra.  Students who successfully complete the eighth grade have a thorough knowledge of the skills and concepts necessary for the study of Algebra I.  High school credit may not be awarded for this course.

 

Please use this document to plan mathematics lessons. The content standards define what students should know and be able to do at the conclusion of the course or grade.  The order in which standards are listed within a course or grade is not intended to convey a sequence for instruction. Each standard is aligned with the appropriate student assessment and correlated with textbooks adopted by Cherokee County Schools.  Bullets denote content that is related to the standards and required for instruction.  Examples clarify certain components of content standards or bullets and are not exhaustive. Technology is integrated throughout the document.

 

 

EIGHTH GRADE

Alabama Course of Study:  Mathematics

Stanford 10/

ARMT

Alabama High School Graduation Exam

Saxon

Lesson

Prentice Hall

Chapter-Lesson

 

1.      Use various strategies and operations to solve problems involving real numbers.

 

http://www.saxonpublishers.com/

 

http://www.phschool.com/

 

 

 

X

 

VII-8:  Solve problems:  Algebraic Concepts

 

 

 

See Bulleted Material.

 

1-7, 1-8, 2-7, 3-8, 4-5, 5-6, 6-10, 7-4, 8-6, 9-4, 10-8, 11-4, 12-9, 13-8

 

 

·        Using alternative representations of rational numbers

 

      Examples:   models, drawings, grids, graphs

 

 

X

 

VII-8:  Solve problems:  Algebraic Concepts

 

 

2A, 8B, 101A, 101B, 123B

 

4-6, 5-2, 6-5, 6-6, 6-7, 6-8, 6-9

 

 

·        Applying GCF, LCM, and prime and composite numbers, including justification for the reasonableness of results, when working with rational numbers

 

       Example:     A new music store is having a

     grand opening.  Every 20th customer gets a

     free compact disk (CD).  Every 35th customer

     gets a free tote bag.  The first customer to

     receive both gifts will be the 140th customer,

     because 140 is the LCM of 20 and 35.  The

     answer (140th) is reasonable because it is

     larger than both 20 and 35.  To say that the 5th

     customer, which is the GCF of 20 and 35,

     receives the gift is not reasonable because it is  

     smaller than 20 and 35.

 

 

 

X

 

I-2:  Add and subtract polynomials

I-3:  Multiply polynomials

I-4:  Factor polynomials

 

7C, 14B, 20A, 20B

 

4-1, 4-3, 4-4, 5-1

 

Alabama Course of Study:  Mathematics

EIGHTH GRADE

SAT10/

ARMT

Alabama High School Graduation Exam

Saxon

Lesson

Prentice Hall

Chapter-Lesson

 

·        Applying proportional reasoning

 

      Example:    The amount of rainfall recorded     for a certain town in a 24-hour period is

      16 inches.  Since the rain fell 2 inches every        

      3 hours, 24 inches of rain will fall in 1

      days if the rain continues at the same rate.

 

X

 

VII-7:  Solve problems:  Direct Variation

 

 

 

 

 

 

 

 

 

54A, 54B, 59, 65A, 65B, 83

 

6-1, 6-2, 6-6, 6-8, 11-1

 

·        Using vocabulary associated with sets, including union and intersection

 

 

X

 

None

 

1A, 21, 26A, 26B, 123

 

 

None

 

·        Determining whether a number is rational or irrational

 

 

X

 

None

 

123B

 

None

 

·        Demonstrating computational fluency with operations on rational numbers

 

 

 

X

 

I-2:  Add and subtract polynomials

I-3:  Multiply polynomials

VII-8: Solve problems:  Algebraic Concepts

 

17, 21, 25, 26, 27, 32, 41, 44B, 45, 46, 49, 50B, 52, 54A, 54B, 56,57, 58, 59, 60, 61, 62, 63, 64, 65B, 66, 67, 68A, 68B, 71, 73, 74, 76, 79, 81, 82, 83, 84, 87, 88, 90, 91, 93, 94A, 94B, 95, 96, 97,101A, 101B, 102, 103, 106B, 106C, 110, 111B, 117A, 117B, 117C, 120B

 

 

 

 

1-4, 1-5, 1-6, 1-9, 5-3, 5-4, 5-7, 5-8, 6-7, 6-8, 6-9, 7-8

 

Alabama Course of Study:  Mathematics

EIGHTH GRADE

SAT10/

ARMT

Alabama High School Graduation Exam

Saxon

Lesson

Prentice Hall

Chapter-Lesson

 

2.  Simplify expressions containing natural number exponents by applying one or more of the laws of exponents.

 

 

X

 

I-3:  Multiply polynomials

 

See Bulleted Material.

 

4-2, 4-7, 4-8, 4-9, 5-9

 

·        Writing numbers using scientific notation

 

 

X

 

I-3:  Multiply polynomials

 

 

50A, 50B, 76

 

 

4-9

 

3.  Use order of operations to evaluate and simplify algebraic expressions.

 

 

 

X

 

I-1:  Apply order of operations

I-2:  Add and subtract polynomials

I-3:  Multiply polynomials

 

 

See Bulleted Material.

 

1-1, 1-2, 1-3, 2-3

 

 

·        Applying the substitution principle

 

 

 

 

X

 

VI-1:  Translate:  Verbal or Symbolic; Graph:  Equations or Inequalities

 

39B

 

1-3, 2-4, 3-4, 7-8

 

·        Applying the properties of operations on rational numbers to evaluate and simplify algebraic expressions

 

 

 

X

 

I-2:  Add and subtract polynomials

I-3:  Multiply polynomials

VI-1:  Translate:  Verbal or Symbolic; Graph:  Equations or Inequalities