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 08 learning pathway.
The student demonstrates the following:
Five science criteria plus separately reported integration (Page 3).
Define the sampled area and time. A snapshot counts abundance; a productivity estimate requires an appropriate rate method.
The student reasons from field data aloud (Page 4).
Method, measurements, and estimate kept distinct.
You are making a decision, not adding up points. For each criterion, decide whether the work is Developing, Proficient, or Mastery — the column language tells you which. A criterion counts as mastered only when the student can both run the survey and defend the plant biology behind it. 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 |
|---|---|---|
| Energy & producers | ||
| Primary producer | autotroph | Makes its own food by photosynthesis; sits at the base of the food web |
| Primary productivity | rate of biomass production | How fast producers store energy as biomass — a rate, not a total |
| Trophic level | feeding level | Each step up loses energy; roughly a tenth carries over |
| Food web | food-chain network | Energy flows one way through it, starting with producers |
| Cycles & people | ||
| Carbon cycle | carbon flow | Plants pull CO₂ into biomass; respiration and decay return it |
| Transpiration | plant water loss | Moves water from soil to air through the plant — part of the water cycle |
| Food security | reliable food supply | Depends on crop productivity and biodiversity, not yield alone |
| Conservation | biodiversity protection | Weighs crop land against wild habitat — a trade-off, not a slogan |
The split between Proficient and Mastery is reasoning from the data: it is not enough to count plants — the student says what the number means. Ask “what does your estimate tell you about the plot?”
| Criterion | Developing | Proficient | Mastery |
|---|---|---|---|
| Plants as primary producers | Cannot explain where a food web’s energy begins. | Names producers but not their role at the base of the web. | Explains how plants convert sunlight into the chemical energy that feeds nearly every food web, and places producers at the base. |
| Primary productivity & energy flow | Confuses biomass, production, and energy flow. | Uses a rate without matching area, time, or respiration terms. | Distinguishes standing biomass from productivity, calculates assigned GPP/NPP quantities, and explains energy transfer with appropriate limits. |
| Plants in nutrient, carbon & water cycles | Cannot connect plants to any biogeochemical cycle. | Names a cycle but not the plant’s role in it. | Explains how plants move carbon, nutrients, and water through their cycles — from photosynthesis to transpiration to decomposition. |
| Agriculture, food security & conservation | Assumes one crop system is always best. | Names a trade-off but mixes resource boundaries or ignores conditions. | Compares yield, resources, diversity, and stress/defense context under stated constraints, without turning a small dataset into a universal recommendation. |
| Lab technique (field survey & productivity estimate) | Cannot define the sampling unit or time interval. | Collects a snapshot but calls it a production rate. | Runs an approved survey or monitored-production task with sample units, area, and time stated; distinguishes counts and stocks from rates. |
| 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. |
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.
Student: ______________________________________ Date: _______________ Guide: _________________________
| # | Criterion | Decision | Notes |
|---|---|---|---|
| 1 | Plants as primary producers | Dev / Prof / Mast | |
| 2 | Primary productivity & energy flow | Dev / Prof / Mast | |
| 3 | Plants in nutrient, carbon & water cycles | Dev / Prof / Mast | |
| 4 | Agriculture, food security & conservation | Dev / Prof / Mast | |
| 5 | Lab technique (field survey & productivity estimate) | 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.