El Camino College - Division of Mathematical Sciences

Math 10B
Basic Arithmetic Skills, Part II
2 units; 2 hours lecture

Catalog Description Course Objectives and Methods of Evaluation
Outline of Subject Matter Planned Instructional Activities

Grading Method: Letter

 Non-Degree Credit --- Does not transfer to CSU and Does not transfer to UC

Prerequisite: Mathematics 10A with a minimum grade of C

Catalog Description:
    This course is a continuation of arithmetic and is designed to develop number and operation sense using decimals and percents and to develop problem solving skills using proportions. Topics include writing decimals in various forms, estimation, ratios, and application..

Course Objectives and Methods of Evaluation:
  1. Course objectives (list the major objectives stated as student outcomes in behaviorally measurable terms.)
    1. Express decimals in standard and written form
    2. Add, subtract, multiply, divide, and calculate powers of decimals using order of operations
    3. Use rounding to estimate results from operations with decimals
    4. Order given decimals from smallest to largest
    5. Perform conversions among decimals, fractions, and percentages
    6. Write ratios and unit rates
    7. Solve proportions
    8. Solve percentage equations of the type A = RB
    9. Solve various application problems involving decimals, proportions, and percentages
  1. Methods of Evaluation - Non-Degree Credit Course
    1. Computational or non-computational problem-solving demonstrations, including: exam, quizzes, homework problems, and individual and group activities.
Outline of Subject Matter
 
Approximate Time
 		Major Topic
12 hours
 		I. Decimal
  1. Place value system including expression decimals in standard and written forms
  2. Addition, subtractions, multiplication, and division of decimals
  3. Rounding and estimation of decimals
  4. Powers, order of operations, and ordering of decimals
  5. Converting between decimals and fractions
  6. Applications
20 hours
 		II. Ratios, proportions, and percents
  1. Writing ratios and unit rates
  2. Solving proportions
  3. Conversions among percentages, fractions, and decimals
  4. Solving percent problems of the type A = RB
  5. Applications
4 hours
 		III. Examinations
Total:
 		36 hours

Planned Instructional Activities:

Lecture, discussion, individual and group work

 Entrance Skills and Knowledge:

List the required skills and/or knowledge without which a student would be highly unlikely to receive a grade of A, B, C, or Credit (or for Health and Safety, would endanger self or others) in the Target Course.
  1. Express whole numbers in standard, expanded, and written form
  2. Add, subtract, multiply, divide, and calculate powers of whole numbers and fractions using order of operations
  3. Use rounding to estimate results form operations with whole numbers and fractions
  4. Perform divisibility tests and prime factorization
  5. Reduce fractions to lowest terms.
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Source of information: Course Outline of Record dated November, 2001


 Last Updated On: 4/20/06