Problem: Do you think that Mr. Ahmet should build solar panels to cover the electricity cost of the house (given his energy needs and budget)?

Age: Middle & High School students

Math Content: rational operations, formulas and equations, inequalities, area & measurement, percentages

Science & Engineering Content: electricity and power

Lesson (See Doğan et al., 2019):

1. Warm Up Questions: elicit student background knowledge of electricity

2. Warm Up Activities: Initial student research, class discussion, short reading about solar energy 

3. Opening Activities: connect to students' real life experiences

4. Problem Statement: Do you think that Mr. Ahmet should build solar panels to cover the electricity cost of the house (given his energy needs and budget)?

5. Product: Create a model that shows how Mr. Ahmet can place the solar panels that can meet his electricity needs at the roof, at an affordable cost, and show in detail how you did it.

Source: Doğan, M. F., Gürbüz, R., Çavuş Erdem, Z., & Şahi̇n, S. (2019). Using mathematical modeling for integrating STEM disciplines: A theoretical framework. Turkish Journal of Computer and Mathematics Education (TURCOMAT), 10(3), 628-653. https://doi.org/10.16949/turkbilmat.502007 

Problem is similar to Storing the Sun.