This packet is everything a parent or guide needs to assess Unit 08 at home — learning targets, the answers that count as correct, the mastery rubric, calibration examples, and a clipboard score sheet. No multiple-choice test: the student shows mastery by working a fisheries-and-conservation data case study and defending a conclusion the numbers support.
By the end of the Humans & the Ocean unit, a student should be able to:
Six criteria, each judged Not yet / Approaching / Mastered (Page 3).
Read catch or population data; quantify the trend and defend a conclusion.
The student reasons from the numbers aloud (Page 4).
Dataset, the trend, and the conclusion kept distinct.
You are making a decision, not adding up points. For each criterion, decide whether the work is Not yet, Approaching, or Mastered — the column language tells you which. A criterion counts as mastered only when the student can both work the data and explain the human-and-ocean science behind it. A student carries three tokens per term; one token buys a re-do of one criterion on another day, so a single bad afternoon never sinks the unit.
Accept any answer in the synonyms column — they are pre-approved as equivalent. The third column flags the confusions that look close but are not yet, so you can coach precisely.
| Canonical answer | Accepted synonyms | Common confusion / discriminator |
|---|---|---|
| Taking from the ocean | ||
| Overfishing | catching faster than a stock recovers | Can collapse a stock even while boats keep fishing |
| Bycatch | non-target catch | Unwanted species caught and often discarded, dead |
| Sustainable yield | the catch a stock can replace | Fish past it and the population declines |
| Dead zone | low-oxygen (hypoxic) water | Fed by nutrient runoff; it suffocates marine life |
| Pressures & protection | ||
| Microplastics | plastic fragments < 5 mm | Break down from larger plastic; enter the food web |
| Ocean acidification | falling seawater pH | Absorbed CO₂ lowers pH and cuts the carbonate shells need |
| Coral bleaching | coral expelling its zooxanthellae | Heat-stress response; the coral pales and can starve |
| Marine protected area (MPA) | ocean reserve | A managed zone that lets stocks and habitats recover |
| Criterion | Not yet | Approaching | Mastered |
|---|---|---|---|
| Fisheries & overfishing | Assumes the ocean’s fish are limitless. | Knows overfishing is a problem but not how a stock collapses. | Explains sustainable yield and how overfishing and bycatch drive a stock toward collapse. |
| Pollution | Thinks pollution is just litter on the beach. | Names plastic or runoff but not its path or effect. | Traces plastics and microplastics, nutrient runoff and dead zones, and oil from source to ecological harm. |
| Climate change & ocean acidification | Sees a warming ocean as no different from a warmer day. | Names warming or acidification but cannot connect the chemistry. | Explains warming and coral bleaching, and how absorbed CO₂ lowers seawater pH and starves shell-builders of carbonate. |
| Conservation | Believes nothing can be done once the damage is underway. | Names a protected area but not what makes one work. | Weighs marine protected areas, habitat restoration, and policy, and judges when each fits the pressure it targets. |
| Lab technique (data case study) | Reads a headline instead of the data. | Reads the dataset but draws conclusions it does not support. | Works a fisheries-and-conservation case study cleanly — quantifying the trend and defending a conclusion the numbers support. |
| Integration (cross-domain) | Treats the science as isolated facts; makes no cross-domain connection. | Names a link to history, reading, or writing but cannot defend why it matters. | Connects the unit to its anchor across History · Reading · Writing (plus chosen electives) and defends why the connection matters. |
The split between Approaching and Mastered is let the data lead: a student who reads the trend and only claims what the numbers support has it. Ask “what does the dataset actually show?”
Read these before you grade. They show what Mastered and Not yet actually sound like, plus the edge cases where you should coach rather than decide on the spot.
Student: ______________________________________ Date: _______________ Guide: _________________________
| # | Criterion | Decision | Notes |
|---|---|---|---|
| 1 | Fisheries & overfishing | NY / Appr / Mast | |
| 2 | Pollution | NY / Appr / Mast | |
| 3 | Climate change & ocean acidification | NY / Appr / Mast | |
| 4 | Conservation | NY / Appr / Mast | |
| 5 | Lab technique (data case study) | NY / Appr / Mast | |
| 6 | Integration (cross-domain) | NY / Appr / Mast |
☐ No ☐ Yes — for criterion: __________ Tokens remaining: ☐ 3 ☐ 2 ☐ 1 ☐ 0
NY = Not yet · Appr = Approaching · Mast = Mastered · Unsure between two levels? Circle the lower one and note what a re-do would need.