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Math 25
 Issues Without Right Answers 

Lecture Notes
Practice Final
Practice Final
Study Skills
Study Skills

Becoming Good at Math

Math 25 teaches practical math and cures the mindset "I am bad at math". It usually cures the mindset "I am afraid of math".

Study Skills

You will learn math study skills. Math classes have their own best ways to take notes, do homework, cooperate in groups, and prepare for tests.

If you have never been taught these study skills then of course you felt overwhelmed by previous math classes. You were actually trying to learn two classes at once: the math topics and these study skills. Then there was the extra problem that the second class is barely acknowledged.

In Math 25 we emphasize these study skills. Once you learn them, your classmates will look at you and say, "You are such a good student!" What they mean is, "I am still doing a double curriculum but you're not. You are passing the class while doing half the work."

This is one-third of becoming "good at math".

Math Skills

You will review the basic Math 20 concepts and skills: ratios, proportions, percents, and scale factors.

various kinds of pliers In Math 25 we assume your understanding of these topics is vague and mostly forgotten. We review and build a solid understanding about how and when to use those ideas in real life.

As an analogy, most students leave Math 20 knowing what a "pliers" is. They understand how to use one. But in real life there are many kinds of pliers, each appropriate in different situations, and each used slightly differently.

This is another one-third of becoming "good at math".

Big Issues

You will also be introduced to the delightful world of math issues without right answers.

Yes, we do small problems with right answers too. Those are the foundation of any discussion of big issues. Don't worry. There are not many new facts and formulas. You will learn them and grow in math confidence.

We will use facts and formulas to measure calories, metabolism, and exercise. You will be able to explain the practical uses and limitations of these calculations.

We will use facts and formulas to analyze interest, plan a budget, explore mortgage options, compare charge options, and evaluate plans to save for retirement. You will be able to explain why certain financial choices are appropriate for different life situations.

We will use formulas to use yield percent, measure retail markup and discount, use restaurant pricing methods, compare averages and probabilities, and calculate expected values. You will be able to explain which business models make these formulas appropriate.

But much more interesting than these small problems (that do have right answers) are the big issues. What does this kind of math mean for you? How can a little math help you make better health decisions, personal finance decisions, and business decisions? Those issues have no right answers.

Those big issues will introduce you to seeing life with a math worldview. The big issue answers you develop during class will continue to mature as you mature. This is how math helps quality of life.

This is the final one-third of becoming "good at math".

Allow the class to challenge you. Achieve your potential. Be pleasantly surprised by the height of your accomplishments.

Using this Snazzy Website

This website has dumploads of resources to help you succeed.

The Topics and HW page has online notes for each of our twelve topics, and a single page of homework. You will be given a printed copy of the homework. Please ask for a printed copy of the online notes if those would help you.

The Lecture Notes page is where we archive everything written on the board during class. Use these to help complete your own notes. If you are primarily an auditory learner then during class focus on listening carefully, since these notes will be available. If you miss a class, call a classmate and go through these notes together.

The Study Skills page has lots of advice for being an effective, efficient, and excellent math student. We will discuss this advice a bit at a time, at the end of each topic.

The Achievements and Assignments page is where you see what work to do, and also where you record completing it.

The Library page shares about our book report assignment and some readily available books to consider.

The Syllabus page has its kind of information.

All the webpages try to be organized and fun. Try clicking on things. Use Control-F to search for text. Consider installing a browser extention to create a sidebar with the outline (such as HeadingsMap for Chrome or Firefox).