El Camino College - Division of Mathematical Sciences

Math 23
Pre-Algebra
3 units; 4 hours lecture and 5 hours study

Prerequisite:  Mathematics 10B or Mathematics 12 with a minimum grade of C or qualification by testing (El Camino College Mathematics Placement Test) and assessment.

Catalog Description:
This course bridges the gap between arithmetic and formal algebra, developing number sense and operation sense, in order to formulate and solve algebraic equations with integers, fractions, and percents. Algebraic principles are applied to problems from a variety of fields. Other topics include: proportional reasoning, spatial reasoning, informal geometry and measurement, coordinate graphing, informational graphs, and data collection and description.

Course Objectives:

1. Acquire effective study skills including the use of the calculator in appropriate situations.
2. Perform various operations (addition, subtraction, multiplication, division, and exponentiation) on different sets of numbers (whole, integer, and rational) and recognize equivalence when it occurs, particularly with fractions, decimals, and percents
3. Formulate mathematical representations of real-world applications including the recognition of proportional relationships.
4. Estimate to determine the reasonableness of results.
5. Recognize and apply the concepts of variable, expression, and equation.
6. Solve linear equations.
7. Find perimeters, areas, and volumes of various geometrical shapes and use in applications.
8. Represent linear relationships with tables, graphs, and equations (coordinate graphing).
9. Read, interpret, and construct tables, charts, and graph

For more information please see the Math 23 Course Outline of Record.