Precalculus Lesson Plans
and Work Sheets



Introductory Concepts and Definitions

Precalculus Assignments for Larson/Hostetler

Trigonometry Tests and Exams

The Story of Joe Sine

Precalculus "Definitions"

MATHO Game for the first week of school

Emergency Lesson Plans -- Sudoku Puzzles



Trig Ratios in a Right Triangle

Mnemonics for the trig ratios (SOHCAHTOA)

Legend of SOHCAHTOA

The Great Trigonometry Puzzle

Trig Cut Ups

TRIGO Puzzle



Unit Circle and Radians

Radian, The Snowman

The Radian Walk

The Unit Circle

A Method for Remembering the Unit Circle

Chart for Remembering some Basic Trig

Alphabetical Order and Trigonometry



Graphs of the Trig Functions

Sine and Cosine Game

Spaghetti and the Sine Curve

Sine Curve Equation

Graph Trig Functions

Biorhythms and the Sine Curve

Graph Paper for Tests



Trigonometric Identities

Triangle Trig -- Identities

More Trig Cut Ups -- Identities

Doublets -- "Word Identities"

More Doublets -- "Word Identities"

More Word Ladders -- "Word Identities"

More Word Ladders -- "Word Identities"

I Have... Who Has... Cards -- Identities

Sum and Difference Identities

Trig Tic Tac Times

Trig Identities Connect The Dots

Magic Square -- Trig Identities

Trig Identities Card Game

List of Trigonometric Identities

Penguin (Simplify Trig identities)-- from Amanda Harvey

Find the Error (Identities) -- from Amanda Harvey

Covalent Bonds and Trig (Identities)

Turvy #13 for Precalulus Topics (including identities)

Turvy #14 for Precalulus Topics including trig identities



Law of Sines and Law of Cosines

Proof of the Law of Cosines (Without Words)

Worksheet -- Proof of the Law of Cosines

Outline -- Law of Sines/Law of Cosines

Worksheet -- Ambiguous Case (SSA)



Vectors and Applications

Turvy for Applications of Trigonometry

More Applications of Trigonometry

Still More Applications of Trigonometry

Accident Reconstruction with Vectors

Snell's Law

Skid Marks

More Vector Applications

Application of Polar Coordinates to Art


Probability Concepts

Pascal's Wager

The Birthday Problem

My letter to Marilyn vos savant regarding the Birthday Problem

Poker Hand Probabilities

Monopoly Probabilities

Pizza Project (Combinations)

Chain Letters and Pyramid Schemes

Urim and Thummim

Blood Types

Blood Types

Let's Make A Deal!

Can't Stop -- Probability Game

Six Degrees of Separation

Probability Puzzle

Combinations & Permutations

Odds that God Exists

Flipping A Coin

Using Bayes Theorem to find a missing airplane

Expected Value Problems

Set of Simplified Playing Cards

The Mathematics behind the game of SPOT IT!

Central Limit Theorem application

Pythagorean Expectation for NFL teams in 2016



Statistics Concepts

Color Distribution of M&M Plain Candies

M&M's Worksheet

Sports Data for Correlation Coefficients and Scatter Plots

Salary Data for Celebrities and Real people (2013 / 2014)

Voting: The Importance of Method

Candy Math Fun

Letter from Mars Candy Company about M&M's

1970 Draft Lottery

Super Bowl (Gathering Data)

World Series Champions (Gathering Data)

NCAA Division 1 Football Champions (Gathering Data)

NCAA Basketball Tournament Champions (Gathering Data)

Statistical Study of the Letters of the Alphabet

SAT Scores -- z-scores

Alabama Paradox

Statistics solves the Toilet Seat Problem

Mean, Median, and Mode

A Baseball Paradox

Batting Averages

List of Deadliest American Animals


Send any comments or questions to: David Pleacher