Students follow the steps of the engineering design process (EDP) while learning about assistive devices and biomedical engineering. They first go through a design-build-test activity to learn the steps of the cyclical engineering design...

This case study requires analyzing the uncollectible accounts receivable of CFS, Inc., and determining adjusting entries using both direct write-off and allowance methods. Additional Internet research activities are included.

Learn about a new, innovated method of cleaning off oils, stripping paints, and other general cleaning applications.

Explore methods for calculating and comparing discounts in this video from KQED. In the accompanying classroom activity, students develop different strategies for calculating and comparing discounts, including percent off a price,...

Based off of the hit television show NUMB3RS, this lesson has students explore the notion of Pythagorean triples, the "traditional" method for finding Pythagorean triples, and a method to find triples which utilizes the Fibonacci...

Based off of the hit television show NUMB3RS, this lesson shows students different ways to find centroids of regular polygons. The traditional way (using medians) is presented, as well as the triangulation method, the diagonals method,...

Based off of the hit television show NUMB3RS, this lesson has students create box-and-whisker plots for given data, and then determine which (if any) data points are outliers. Students determine outliers through two methods in this...

Based off of the hit television show NUMB3RS, this lesson introduced students to simple methods of cryptography, most notably the Caesar cipher. By sliding the alphabet a certain number of spaces, students code and decode messages, and...

Based off of the hit television show NUMB3RS, this lesson introduces students to a couple applications of matrices. Namely, a competition matrix is manipulated so as to rank included players, squared to see how opponents did, and finally...

Based off of the hit television show NUMB3RS, this lesson uses matrices (inverse and multiplication) to decode messages hidden within digital pictures -- a process known as steganography. This method of hidden communication is known to...

Based off of the hit television show NUMB3RS, this lesson exposes students to the concept of expected values (or expected outcomes). The method for computing the expectation is explained, and then many examples are given for students to...

Based off of the hit television show NUMB3RS, this lesson, designed for upper-level high school students, has students linearize the data describing the force of a magnet at various distances. While it is assumed students already know...

Based off of the hit television show NUMB3RS, this lesson is best used as an extension to linear programming in which the solutions to the proposed problem must be integers. The Branch and Bound method operates on the optimized point,...

Based off of the hit television show NUMB3RS, this lesson introduces students to the odds ratio, a method in statistics for determining if the findings of two groups are statistically significant to each other. Students will find...

In a spin-off to studying about angular momentum, students use basic methods of comparative mythology to consider why spinning and weaving are common motifs in creation myths and folktales. Note: The literacy activities for the Mechanics...

Historically, sea floor mapping occurred with a more simple data collection method: soundings. Soundings are taken by dropping a weight with a pre-measured rope off the side of the boat and noting the measurement on the rope when the...

Based off of the hit television show NUMB3RS, this lesson introduces students to the Art Gallery Problem, in which the number of guards necessary to guard a two-dimensional space (the "art gallery") must be found. This lesson keeps the...

Based off of the hit television show NUMB3RS, this lesson shows students two different ways to "normalize" scores: by applying a created scalar factor so that all scores have a mean of one, or by using z-scores. Students are walked...

Chef Dan Barber squares off with a dilemma facing many chefs today: how to keep fish on the menu. With impeccable research and deadpan humor, he chronicles his pursuit of a sustainable fish he could love and the foodie's honeymoon he's...

Mapping the ocean floor must be done by indirect observation. One method involves bouncing a sonar signal off of the ocean floor and measuring the length of time this signal takes to return. This length can be translated into distance:...

Research the location of land mines by animals and technological methods. Use a metallic probe to uncover the location of an electric-circuit target (representing a buried land mine) without setting off the "bomb".