This Web-based resource offers online "chunks" of learning content using various media — including text, models, animation, audio, and still images — to illustrate a single concept. The lessons cover a range of topics, from genetics to photosynthesis to succession. These learning objects meet the needs of students with differing learning styles and can function as stand-alone resources or as supplements to existing content.

The links below go to the teacher guides, which are in PDF format and require:
Adobe Acrobat Reader.

To go to the interactive lessons, click on the ILO link above.