Use these targets, vocabulary, rubrics, examples, and score sheet with the instructor's approved lesson and procedure. This is an assessment companion, not a complete lesson or safety authorization.
Student lessons, data, and worked answers: Unit 05 learning pathway.
The student demonstrates the following:
Use the five science criteria and selected learning level.
Label supplied data separately from actually observed, approved skills.
Use a changed dataset or assumption, not recitation of the answer key.
Report source-linked writing separately; it cannot block a science pass.
Judge each criterion Developing, Proficient or Mastery from its stated evidence. A supplied-data result does not certify an unobserved practical skill. Each student has three tokens per term; each token retries one rubric criterion. Approved accommodations, equipment failures, and approved absences are handled separately and do not consume these tokens.
Accept listed synonyms; use the distinction column to resolve near-matches.
| Canonical answer | Accepted synonyms | Common confusion / discriminator |
|---|---|---|
| Teleost / cartilaginous fish | bony fish group / sharks and rays | Not all bony fishes are teleosts. |
| Lateral line | water-movement sensory system | Not a gill or buoyancy organ. |
| Swim bladder | gas-filled buoyancy organ | Present in many, not all, teleosts. |
| Counter-current exchange | opposing water/blood flow | Maintains gas gradient along gills. |
| Ventilation | water flow over gills | Not synonymous with buoyancy. |
| Osmoregulation | regulated water and solute balance | Costs energy; differs among environments. |
| Ionocyte | ion-transporting gill cell | Transport can depend on ATP. |
| Urea / TMAO | retained organic osmolyte / protein stabilizer | Total osmolarity is not salt composition. |
| Rectal gland | shark salt-secreting organ | Not a teleost swim bladder function. |
| Osmoconformer | near-environment total osmolarity | Can still regulate individual ions. |
| Morphometric ratio | one matched length/another | Requires common units and landmarks. |
| Criterion | Developing | Proficient | Mastery |
|---|---|---|---|
| Fish anatomy | Mislabels major structures. | Labels fins/gills but omits function or exceptions. | Identifies fins, gills, lateral line and swim bladder where present, linking visible structure to function and limits. |
| Cartilaginous vs bony fish | Uses size or danger as classification. | Names skeleton types without supporting traits. | Distinguishes sharks/rays from bony fish using skeleton and corroborating traits; avoids universal swim-bladder claims. |
| Buoyancy & gas exchange | Confuses ventilation with buoyancy. | Explains one process but conflates shark exceptions. | Explains buoyancy and counter-current exchange; separates ram/pump ventilation from absence of a swim bladder. |
| Adaptations & osmoregulation | Ignores salt/water balance. | Predicts osmosis but omits active transport. | Compares teleost ion regulation with shark urea/TMAO and rectal-gland function; balances water fluxes with limitations. |
| Lab technique (fish structure evidence) | Invents observations or incompatible lengths. | Records structures but not landmark or scale context. | Records supported anatomical identifications and comparable morphometric ratios; labels image/data evidence separately from observed specimen skills. |
| Integration (cross-domain) | Makes no supported connection between the source and the science. | Uses the source but needs help connecting evidence, writing, or limitations to the science. | Independently connects History, Reading, and Writing using a cited source, appropriate evidence, a limitation, and a scientific explanation. |
The split between Proficient and Mastery is structure → function: naming a part isn’t enough. Ask “what does that structure do for the fish, and how do you know?”
Read these before you grade. They show what Mastery and Developing actually sound like, plus the edge cases where you should coach rather than decide on the spot.
A fish has no swim bladder. Does that prove it is a shark that must swim continuously?
No. Some bony fishes also lack one; skeleton, gill covering and other traits are needed. Ventilation mode is species-dependent and separate from buoyancy.
Use a fresh variant for assessment. Integration is reported separately and cannot lower the science grade or block a science demonstration pass. Science and practical criteria determine that pass.
Student: ______________________________________ Date: _______________ Guide: _________________________
| # | Criterion | Decision | Notes |
|---|---|---|---|
| 1 | Fish anatomy | Dev / Prof / Mast | |
| 2 | Cartilaginous vs bony fish | Dev / Prof / Mast | |
| 3 | Buoyancy & gas exchange | Dev / Prof / Mast | |
| 4 | Adaptations & osmoregulation | Dev / Prof / Mast | |
| 5 | Lab technique (fish structure evidence) | Dev / Prof / Mast | |
| 6 | Integration (cross-domain) | Dev / Prof / Mast |
☐ No ☐ Yes — for criterion: __________
Tokens left this term after this session (choose one): ☐ 3 ☐ 2 ☐ 1 ☐ None left
Dev = Developing · Prof = Proficient · Mast = Mastery · Unsure between two levels? Circle the lower one and note what a re-do would need.