BHS Biology Guide

Principles of Ecology

Biology

Quarter 4

McGraw Hill Module 2

Do a feld activity: Accompany students from the classroom to the school grounds. Have them identify biotic & abiotic factors they observe. Phenomena Check In Revisit: “Why would a bird build a nest in a tree with thorns?” “What relationships among organisms might exist with a bird nest built in a thorny tree?” What have we learned so far that will help us answer this question. Engage Launch the Lesson: Flow of Energy in an Ecosystem ● Watch the video ~ 5 min Have the students write down on a sheet of paper/book-- Energy Flow: ● What I know ● What I want to know Teach trophic levels and models of energy fow (pyramids and food webs) Before students begin constructing their model (see below), have them answer questions about the fow of energy & matter in the food chain, such as: ● What energy fows into the system? ● What energy fows out of the system? ● What matter cycles into the system? ● What matter cycles out of the Introduce new vocabulary Explore & Expand

heet- Make a T-chart comparing abiotic and biotic factors

● N/A

N/A

5min

● Video--

Lesson2:

Onlin e

10min

Launch the Lesson: Flow of Energy in an Ecosystem

Flow of Energy in an Ecosystem

Focus Question:

Howdoes energy fow through an ecosystem?

● Applying Practices: Ecological Pyramids worksheet ● Energy Flow Project (need magazines, markers, posters, etc.)

35-38

150min