Science Lesson Kit · Teacher Resource
Human Body Systems: Cells to Organ Systems — 5E Lesson Plan
Life Science · 55 minutes
Grade 6
5E lesson flow
01
Engage
7 min
Teacher Does
Show the cells-to-systems hierarchy with one level hidden.
Students Do
Predict the missing level and justify it.
Ask
- What is built from groups of cells?
- What comes after tissue?
Look For
Cells → tissues → organs → systems.
02
Explore
14 min
Teacher Does
Give students hierarchy cards and simple before/after activity data.
Students Do
Build the hierarchy and identify patterns in breathing/heart-rate data.
Ask
- What changed together?
- What might that suggest?
Look For
Coordinated response as evidence of interaction.
03
Explain
11 min
Teacher Does
Formalize tissue, organ, subsystem, interaction, and evidence.
Students Do
Explain one connected-system model.
Ask
- How do the subsystems depend on one another?
Look For
Movement of materials/information between subsystems.
04
Elaborate
15 min
Teacher Does
Compare a connected model with isolated boxes.
Students Do
Critique the models using evidence and revise the weaker one.
Ask
- What connection is missing?
- What evidence would support your revision?
Look For
Explicit system interactions rather than isolated organ descriptions.
05
Evaluate
8 min
Teacher Does
Ask students to make and defend one claim about body organization or interaction.
Students Do
Write or present a short claim-evidence-reasoning response.
Ask
- What evidence supports your claim?
Look For
Evidence tied to hierarchy or interacting subsystems.
Student goal
I can use evidence to explain how cells form larger structures and how body subsystems interact.
Learning objectives
- Explain the hierarchy from cells to tissues to organs to organ systems.
- Use evidence to argue that body subsystems interact to support normal body functions.
- Interpret separate breathing-rate and heart-rate data as evidence of coordinated subsystem responses.
Materials
- Hierarchy cards
- Exercise-rate data or prepared graph
- Body subsystem connection cards
- Large paper
- Markers
- Student recording sheet
Before class
- Prepare cell/tissue/organ/system cards.
- Use prepared, anonymous activity data rather than requiring strenuous exercise.
- Do not invite public comparisons of individual health or fitness.
- Keep focus on interactions among subsystems, not detailed mechanisms of one isolated system.
- Open Teach Mode.
Prior knowledge
- Living things are made of cells.
- Cells have structures that contribute to cell functions.
Vocabulary
- cell
- The smallest unit that can be said to be alive.
- tissue
- A group of similar or related cells working together.
- organ
- A structure made of tissues working together for particular functions.
- organ system
- A group of organs and tissues that work together as a body subsystem.
- subsystem
- A smaller system that is part of a larger system.
- interaction
- A relationship in which parts affect or depend on one another.
- evidence
- Observations or data used to support a claim.
Differentiation
- Provide a pre-labeled hierarchy for students who need support.
- Allow oral claim-evidence reasoning before writing.
- Use arrows and icons to reduce reading load.
- For extension, compare two different subsystem interactions.
Assessment
- Check hierarchy models.
- Check data interpretation.
- Look for claims supported by evidence about interactions.
Exit ticket
Use one piece of evidence to explain why body subsystems should not be modeled as completely independent.
Extension
Investigate another interaction, such as digestive-circulatory or nervous-muscular, while keeping the focus on subsystem connections.