Muscles Work in Pairs
Explain that muscles work in antagonistic pairs — one contracts while the other relaxes — to produce movement, using the bicep and tricep as a key example
Share and support
Teaching Table
Set out your lesson
Practise the bounded task in Muscles Work in Pairs; see exact limits before inferring broader coverage.
Identify elbow and upper arm without needing to move your own body.
Exact directed source edges retained; earlier authorship is not learner attainment.
These supplied stage cards
Scrap paper and pencil; oral/pointing response where appropriate
Read readiness and decide on support without treating prerequisite authoring as learner readiness.
Open Show first and explain its model.
Use Guided Try with support and its separate adult key.
Close Show and guided keys before Try, unless this Try is explicitly supported.
Reflect on an actual attempt, including help used.
Use the supplied screen cards; copying the exact task to paper is optional, not required.
Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.
Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.
Use the complete materials on screen or print only the current sheet. Keep adult guidance out of learner view. Retain an earlier model only when the current step supplies it as context.
Teaching limits and safe use
These are finite task opportunities, not proof of mastery. Record what was attempted and what support was used.
Not a medical or exercise assessment; pain-free optional demonstration is unnecessary, and detailed multi-muscle anatomy is outside scope.
Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.
Family records and proof options
Keep a record of your learning
Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.
Learning resources
Reviewed external links that reinforce this concept. They do not replace Gakuva’s teaching approach.
No reviewed resources for this concept yet.
The teaching approach above still stands. Curated practice links will appear here as the shelf fills.
Check understanding
- Explains why muscles can only pull, not push
- Describes what happens to the bicep and tricep when the arm is bent and straightened
- Gives another example of an antagonistic muscle pair
“If your child bent and straightened their arm, could they explain why two different muscles are needed — one to bend and one to straighten — and which muscle is which?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Organisms & Life Processes
- Age range
- Ages 11–13
Standards