Curated OER
Hydrogen Peroxide Analysis
A scenario is presented for chemistry techs to address. Using titration techniques, they must analyze hydrogen peroxide solution samples. They evaluate accuracy and precision in the process. They also gain experience consulting the MSDS...
Curated OER
The Floating Egg Problem
This is the grown-up version of the classic "float an egg in salt water" experience, plus an experiment in soap making. High schoolers explore density, but more importantly, practice accuracy, precision, and the use of significant...
Institute of Electrical and Electronics Engineers
Robot Basketball
Hold a free-throw shooting challenge in your engineering class! Each team must design a contraption that will fire off a "robot arm" or, more specifically, a catapult, to send a Ping-Pong ball into a basket. Use this as an opportunity to...
Curated OER
Apple At Dinner
Students explore motor skills by creating art projects from apples. In this hand-eye coordination lesson, students utilize a knife, red apple, and different art supplies to create a person's face on the fruit. Students work slowly with...
Curated OER
Significant What?
Students define accuracy and precision, and differentiate between the two terms, apply the concepts of accuracy and precision to a given situation and correctly apply the concept of significant figures to measurement and mathematical...
Curated OER
Scientific Data: It's Not as Pretty as It Looks!
The difference between accuracy and precision is fundamental for high school science learners. Using test kits for nitrate concentration in water, they compare readings with each other. They consider the accuracy, precision, and bias of...
Curated OER
Measurements and Their Uncertainty
In this measurements worksheet, students fill in 10 blanks, determine if statements are true or false, match 6 terms with the appropriate definitions, and solve 2 problems. Topics include converting to scientific notation, identifying...