Students learn about homeostasis and create models by constructing simple feedback systems using Arduino boards, temperature sensors, LEDs and Arduino code. Starting with pre-written code, students instruct LEDs to activate in response to the sensor detecting a certain temperature range. They determine appropriate temperature ranges and alter the code accordingly. When the temperature range is exceeded, a fan is engaged in order to achieve a cooling effect. In this way, the principle of homeostasis is demonstrated. To conclude, students write summary paragraphs relating their models to biological homeostasis.

What is Random? Through this project, students will discover what makes an outcome random. Emphasis will be placed on the difference between deterministic and nondeterministic outcomes.  The project starts out with a discovery activity where students will see the difference between creating data with a coin toss where they just make up the data and creating data through actually tossing a coin.Students will end the project by studying pseudorandom number generators, specifically the Middle Squared Algorithm. They will even create a program that uses this algorithm.  Enjoy!