Unit Details
3LNG - Life Cycles & Survival in an Ecosystem
3rd Grade - Life Science - NGSS
Students continue to explore the balance in an ecosystem and the dependency of organisms within the system. They develop models of the life cycles of a variety of organisms. Students determine how some organisms survive well where others do not. They compare data from fossils to modern organisms.
Anchor Phenomenon: The pond is noisy with different animal sounds at night.
Driving Question: Why are the frogs so noisy and loud at the pond?
Engineering Design Challenge: Design and construct a model to demonstrate how problems in populations occur when the environment changes. Determine the merit of a possible solution to the problem.
Ordering Updates We have streamlined our ordering process. Our individual catalogs and order forms have been replaced by a single Interactive Order Form. This Excel spreadsheet contains our complete product catalog and includes dedicated tabs for Trade Books, Spanish Journals, Quick Orders, and individual unit orders, with each tab automatically calculating order totals as you enter quantities. To place an order, download the form, fill in your desired quantities in the appropriate tab, and email the completed file to suzan@bcamsc.org. If you do not have Microsoft Excel, the form can also be opened using Google Sheets.
Curriculum Samples, Packing Slip, and Ordering Information
- Sample Teacher Guide and Student Journal - includes Standards Alignment Information, Unit at a Glance, and example lessons.
- 3LNG Packing Slip - Helpful list of the original unit contents.
- Interactive Product Catalog & Order Form (Excel Spreadsheet) - Download our Excel order form to browse our full product catalog, enter quantities, and get automatic order totals, then send it back to place your order.
Classroom Resources and Curriculum Updates
- View Google Sheet - Updated 5/18/2026

