Scaffolded unit of study— lake samples from local reservoir collected to find diatoms & classify them by shape. Students compare findings to research studies of lake sediment cores to infer how diatom biodiversity has changed in similar lakes over time to infer human influence on diatom habitat.
TAKEAWAYS:
Poster describes science & engineering processes applied by students as they attempted to answer the question—“How can diatom fossils tell us how humans have changed the land over time?”.
SPEAKERS:
Amy Telford (Salem Community High School: Salem, IL)