"What if…?" is a four-day summative assessment for a unit on biodiversity and evolution within a general biology course for ninth and tenth graders. Students gather evidence through multiple investigations to answer the questions: (1) "How has life changed on the planet? (2) What has caused those changes? and (3) What is happening…

Vaping (the use of an e-cigarette) is a common practice among teenagers; 26.7% of high school students report vaping in the last 30 days (Johnston, Miech, O'Malley, Bachman, Schulenberg, and Patrick 2019), making this issue highly relevant. In order to make an informed decision about the use of e-cigarettes, students need to understand the impacts…

Increasingly, science teachers are seeking phenomena that will allow them to explore both scientific content and socially relevant issues. The authors describe a series of lessons that (1) model the exoneration of wrongly convicted individuals using the science of DNA analysis and (2) contextualize individual cases within a larger system where…

Secondary school biology teachers constantly face the challenge of finding ways to connect students with topics that are engaging and relevant to them. In-vitro fertilization and other assisted reproductive technologies are increasingly common medical practices that students may hear about in their lives outside of school, whether from hearing…

This three-day integrated 5E inquiry lesson that includes physics, engineering, and biology concepts, uses physical computing and photoplethysmography to learn about one's pulse. The main learning objective is to have students communicate how wave phenomena, like a pulse, can be analyzed using sensors, which is called physical computing. This…

Learning about chromosomes is standard fare in biology classrooms today. However, students may find it difficult to understand the relationships among the "genome", "chromosomes", "genes", a "gene locus", and "alleles". In the simple activity described in this article, which follows the 5E approach…

In an effort to clean up the Chesapeake Bay, Chesapeake Bay Foundation (CBF) members use hands-on experiential learning opportunities to train teacher ambassadors throughout the bay's jurisdictions. Teacher ambassadors use the skills they learn to develop a Meaningful Watershed Educational Experience (MWEE) for their students to raise awareness of…

Animal biology is fascinating for its incredible diversity in life strategies. These strategies amaze scientists and can also fire the enthusiasm of science students. One group of animals impressive in this way is the phylum "Cnidaria," containing some 10,000 invertebrate species that include jellyfish, corals, sea anemones, hydroids,…

Long before the "Next Generation Science Standards" ("NGSS") were formalized, sensors and other probeware engaged students in science and engineering practices (Metcalf and Tinker 2004). A new generation of probeware based on modern Internet of Things (IoT) technologies is beginning to expand the ways that students can…

It takes a lot more than just telling students that a topic is important for them to find value in the lesson. In order to get students as enthused about a subject, it is important to utilize topics that the students are already interested in, then create a link between that and the science objective. The framework for this type of instruction is…

This article outlines a thinking framework that any teacher can use to adapt curriculum through a lens of gender diversity. The authors illustrate the adaptation of several sample lessons to achieve three key outcomes: (1) to support and reduce harm to LGBTQ students; (2) to engage all students with inquiry into science in society; and (3) to…

When the author's spouse identified as female (they had been assigned male at birth), she did not consider how it would change her practice as a high school biology teacher. However, her spouse's entrance into the Lesbian, Gay, Bisexual, Transgender, Queer, Intersex, and Asexual (LGBTQIA+) community has significantly changed her teaching approach.…

Understanding natural selection and adaptation are important precursors to learning evolution (NGSS Lead States 2013), the central unifying principle of biology. This lesson sequence, guided by the Five Practices Model (Cartier et al. 2013), incorporates data described by Andersson (1982) that details female choice in a population that eventually…

Students from marginalized populations may be less likely to engage in science education and form science identities. Thus, science education should include culturally responsive pedagogy to engage students from diverse cultural and ethnic backgrounds and promote science identity in every student (Mhakure and Otulaja 2017). The author is a high…

The primary learning objectives of this "Next Generation Science Standards" (NGSS; NGSS Lead States 2013) aligned activity is to help high school biology students experience firsthand the role of replication in scientific inquiry and food preference as a behavioral reproductive trait of the Madagascar hissing cockroach. The secondary…