Skip to content
PeerTutor
Sign up
All courses

Biology Basics

A Khan-style middle-school biology path for cells, body systems, heredity, evolution, ecosystems, data, and claim-evidence-reasoning explanations.

This sequenced path uses cited public learning materials plus practice authored for PeerTutor. It does not reproduce provider exercises and is not affiliated with or endorsed by the linked providers.

Start Unit 1Plan an assignment
Course plan

7 units · 7 units, 10-14 weeks science cycle · work at your own speed

Start with Unit 1
What you will learn
  • Explain living systems using cells, structures, functions, and interactions.
  • Use models and data to support biology claims.
  • Write science explanations that separate claim, evidence, and reasoning.

Your units

Open one unit at a time. Finish it before moving down the list.

  1. 1Cells, microscopes, and scaleVideo -> practice -> tutor · 20 checks · 60 min
    1

    Watch

    Pause once. Explain one example.

    Learn, then retrieve
    Cell parts and their functions
    Khan Academy
    Video source: Khan AcademyNext: 20 checks
    2

    Practice

    20 checked questions

    Adaptive practice

    One clear check at a time

    20-item skill bank
    Mastery updates from checked workTarget: durable recall
    Loading the next check…
    Signed-out answers are checked without saving an identifier or attempt history.
  2. 2Levels of organization and body systemsSource -> practice -> tutor · 20 checks · 60 min
  3. 3Homeostasis and feedbackSource -> practice -> tutor · 20 checks · 60 min
  4. 4Heredity, traits, and variationVideo -> practice -> tutor · 20 checks · 60 min
  5. 5Natural selection and adaptationSource -> practice -> tutor · 20 checks · 60 min
  6. 6Ecosystems, food webs, and energy flowVideo -> practice -> tutor · 20 checks · 60 min
  7. 7Biology investigation and explanation portfolioSource -> practice -> tutor · 20 checks · 60 min
Books, videos, and sources

Khan Academy materials are free on Khan Academy. PeerTutor is unofficial and is not endorsed by Khan Academy.

Cell parts and their functionsGenes, proteins, and traitsMatter and energy in food websMiddle school biology - NGSSNYS Grades 3-8 Science Learning StandardsNYS P-12 Learning Standards by Content AreaOpenStax ScienceCK-12 Middle School Life Science 2.0FlexBook textbooks and conceptsMiddle School Science CurriculumOER Commons
View the full source index
Biology Basics course · PeerTutor