Biology
These are the topics typically taught in a high school Biology or Honors Biology course. Honors classes usually cover the same units in more depth, with more data analysis and a faster pace. Each lesson page ends with an NGSS Alignment section listing the Next Generation Science Standards the lesson builds toward.
Biology tests ask you to reason from evidence, so every lesson is built around graphs, data tables, and models, and the worked examples show you how to read them and back up a claim.
Unit overviews: Unit 1 · Unit 2 · Unit 3 · Unit 4 · Unit 5 · Unit 6 · Unit 7 · Unit 8 · Unit 9 · Unit 10
Notes, practice, and resources for each Biology unit and topic. Pick a unit, then open its topics. The top corners of each tile show the unit number and how many topics it covers.
Units and Topics
Ecology · Units 1 to 3
Evolution and the Molecules of Life · Units 4 and 5
Cells and Energy · Units 6 to 8
Genetics · Units 9 and 10
NGSS alignments list the high school performance expectations each lesson builds toward. Next Generation Science Standards (NGSS) is a registered trademark. The organizations that developed the NGSS were not involved in producing this site and do not endorse it.