PGEOG 250 assumes proficiency in the topics listed below. If you need a review of this material, read the model problems for the topic and then answer the corresponding practice exercises. Make sure to check your answers. If you have problems with any of these and need assistance, check for the hours that the Dolciani Math Learning Center is open for support in advance of or at the beginning of the semester.
The brush-up materials for PGEOG 250 are in two parts:
- The PDFs below include brush-up skills on selected topics.
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- Combining Rational Expressions
- Comparing and Ordering Fractions, Mixed Numbers and Decimals
- Converting Between Fractions, Decimals and Percents
- Converting Units of Measurement
- Introduction to Exponents and Logarithms
- Numbers in Scientific Notation
- Raising Positive Decimals Smaller than One to Nonnegative Integer Exponents
- Recognizing Some Functions and Their Graphs
- Solving Linear Equations
- Solving Problems Involving Percents
- Using Functional Notation
- Working with Complex Fractions
- Working with Decimals
- Working with Integers
- Working with Fractions
- Working with Formulas
- Working with Exponents
- Working With Proportions
- Working with Rational Numbers
- The multi-media materials in the Dolciani Math Center encompass reviews and practice problems on all of the prerequisite skills necessary to be successful in your course.
Come to the Dolciani Math Center in the 7th floor of the library, receive a brief orientation and then you are set to use these materials either in the Center or at home.