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Welcome to Math 25!

link to syllabus

Our syllabus describes the class calendar, homework, grading, and other important information.

Math 25 builds off of Math 20 concepts and skills. There is not a lot of new math to learn. With lectures, discussions, and projects we review ratios, proportions, percents, and scale factors so a vague understanding of those topics grows into a solid understanding about how and when to use those ideas in real life.

various kinds of pliers

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.

Math 25 is about making your own "math toolbox". By the end of the term you will understand the different kinds of ratios, proportions, percents, and scale factors. You will know which are appropriate in various real-life situations, and how they are used slightly differently depending on the situation.

Online Lecture Notes

Topic In-Class Activity Facts Formulas Homework
Patterns Toothpick Patterns
Toothpick Patterns
Tautological Tiles
Tautological Tiles
The Triangle Formula
Triangle Formula
Homework
Homework
Health Breating or Heart Rate
Which Rate?
Calories
Calories
Heart Rate or BMR or DCI
Heart Rate, BMR, DCI
Homework
Homework
Kitchen Math Vegetable Trimming
Trimming
Yield Percent
Yield Percent
Scaling Up from Spoon to Cup
Spoon to Cup
Homework
Homework
What is Average? Typical of a Group
Typical of a Group
Bell Curves
Bell Curves
Mean and Median
Mean & Median
Homework
Homework
Interest Six Years of Rent Increases
6 Years of Rent
Simple Interest
Simple Interest
Compound Interest
Compound Interest
Homework
Homework
Investing The Rule of 72
The Rule of 72
Mortgages
Mortgages
Sum of Annuity Due
Sum of Annuity Due
Homework
Homework
Pricing Charge Options
Charge Options
Markup & Discount
Markup & Discount
Entrée Pricing Methods
Entrée Pricing
Homework
Homework
Likelihood Fair Spinner Games
Spinner Games
Probability and Odds
Probability & Odds
Weighted Average
Weighted Average
Homework
Homework
Numbers on the Page Layout
Layout
Subtract or Divide - Absolute and Relative Change
− or ÷
Missing Link in a Chain Discount
Missing Link
Homework
Homework

Other Assignments

Syllabus Quiz

Core Learning Outcome Assignment

Article Reports

Project Options

Midterm One

Midterm Two

Final Exam

Archived Board Work

None yet!


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