Through this course students will develop their own community and world-changing ideas into venture plans, using practical frameworks and principles. Students will learn about social entrepreneurism as a vehicle for change, and about the different forms and structures social entrepreneurism can take. Accomplished social entrepreneurs from around the world will share their experiences and perspectives with the class through in-person visits and video sessions. They will also help the students think through their ideas.

This course is the second semester of second-year Spanish. Students enrolled should have taken LS201 or the equivalent and be able to use the present, future, preterit, imperfect tenses, command forms and present subjunctive with some fluency. This course will solidify grammatical structures of Spanish through activities that practice all four skill areas: speaking, listening, reading and writing. Attention will be given to more sophisticated use of the subjunctive and compound tenses.

This course is the first semester of second year Spanish. Students enrolled in this course should have taken LS102 or the equivalent and be able to use the present, future, preterit and imperfect tenses with some fluency and have a working knowledge of the present subjunctive. This course, taught almost entirely in Spanish, is designed to reinforce grammatical structures introduced in first-year Spanish through activities that practice all four skills: speaking, listening, reading and writing. Attention is given to using command forms and the present subjunctive.

This course is the second semester of first-year Spanish and students enrolled in this course should have taken LS101 or the equivalent. This class is taught almost entirely in Spanish and focuses on speaking and using the target language. Students entering this level should be able to use the present, future (ir+a+infinitive) and past with some fluency and accuracy. Attention is given to building accuracy with grammatical structures introduced in LS101 and focuses on the differences between the preterit and imperfect tenses along with an introduction to present subjunctive.

This course is designed for students with no background in Spanish. Students are introduced to basic grammatical structures including present, past and future (ir + a + infinitive tenses) and by the end of the semester should be able to communicate in verbal and written forms about personal information, daily activities, future plans and past experiences. All four skill areas (speaking, listening, reading and writing) are practiced through activities that are based on real-life situations and the students' experiences.

Environmental Chemistry: This course will explore several current environmental topics with strong components in chemistry. We will put special emphasis on environmental concerns in the hydrosphere, soils, and atmosphere. Topics will include chemistry of natural waters, water pollution and wastewater treatment, toxic heavy metals and their complexation properties in soils, and inorganic and organic pollutants in the atmosphere. We will also examine energy use and its environmental consequences.

Ecological Genetics: Ecological genetics lies at the interface of ecology, evolution, and genetics. This discipline concerns the genetics of ecologically important traits (those traits that relate to fitness and adaptation) and primarily focuses on phenotypic variation and evolution. This course will provide a foundation for how and why traits such as cryptic coloration in butterflies persist and what variations in mice populations allow some individuals to survive the winter.

This course is a broad introduction to the science and practices of sustainable agriculture and organic farming, as well as agroecology, beyond organic. It will emphasize the study of the underlying science and related issues of key agricultural methods, along with some hands-on experience in the field and lab. We focus on methods that avoid the use of nonrenewable resources. We will visit/work some on the Hampshire College farm and in class some topics will follow the farm season (e.g., the coming of spring).

Molecular ecology utilizes the spatial and temporal distribution of molecular genetic markers to ask questions about the ecology, evolution, behavior, and conservation of organisms. This science may utilize genetic variation to understand individuals, populations, and species as a whole ("How does habitat fragmentation affect connectedness among populations?" "From where do particular groups originate?").

Linear Algebra: Linear Algebra: Linear algebra is valuable for explaining fundamental principles and simplifying calculations in Mathematics, Statistics, Computer Science, Engineering, Physics, Biology, and Economics. In this course, we will focus on different applications based on course design and student preferences. These will include applications to chemistry, cryptography, economics, genetics, geometry, geology, heat distributions, marketing, image compression, Markov chains and networks.