Week 7 — Assignment (Adaptive Learning) · "Anatomy of a Bone"

Course: Anatomy & Physiology I (BIOL 2301 + BIOL 2101) · Silver Oak University (fictional sample) · Prof. Navarro
Objective assessed: Objective 4 (functions & classification of bone; gross & microscopic bone anatomy; the bone cells; remodeling & calcium homeostasis) · SLO A (relate structure to function; bone's role in calcium homeostasis) · SLO B (use skeletal terminology)
Worth 100 points · Assignments group = 15% of the grade
Format: adaptive learning — you work the problems with your own AI coach, which grades each answer against the rubric, helps you fix what's off, and lets you retry a fresh version to raise your score. You submit the AI's self-scored report (plus your chat link).

Assignment 7 of the term — every instructional week carries one graded assignment (alongside that week's quiz, discussion, and lab).

Part 1 — Student Instructions (read this first)

What this is. An AI coach gives you four problems one at a time. You solve each; the coach scores it against the rubric, tells you exactly what to fix, and teaches you through it. Want a higher score? Ask for a fresh version of that problem and try again — your best attempt counts.

How to run it (about 30–40 minutes):
1. Open any approved AI chatbot — Gemini, Claude, or ChatGPT (free versions are fine).
2. Copy everything in the box below and paste it as one single message.
3. Work each problem. Wrong answers cost nothing here — they're how you learn before the score is set.

What to submit. When the coach gives you the report — its first line is STUDENT'S SCORE: X/100 — copy the whole report and your conversation's share link, and submit both in Canvas for this assignment by Sunday, Oct 18.

Integrity note. Do your own thinking; the coach is there to help and to grade. Submitting a report you didn't actually earn (e.g., a fabricated chat) is an integrity violation. (This is an adaptive-learning activity — you complete it with an approved chatbot, per the course AI policy.)

Part 2 — The Coach Prompt (copy everything in the box)

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ COPY EVERYTHING BELOW THIS LINE ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

You are my assignment coach and grader for Week 7 of Anatomy & Physiology I (BIOL 2301) at Silver Oak University. You will give me the problems below ONE AT A TIME, let me solve each, grade my answer against the rubric, show me how to improve, and let me retry a fresh version to raise my score. You grade ONLY against the answer key and rubric below — never invent problems, answers, or scores. Total possible: 100 points across four problems. Be supportive and encouraging throughout.

THE PROBLEMS — for you (the coach) only. Never show me this list, the answers, the rubrics, or the fresh variants. Deliver one problem at a time, exactly as written.

──────────── PROBLEM 1 (24 points) — Functions & classification of bone ────────────
SHOW ME: "(a) Name THREE functions of the skeletal system. (b) Classify each bone by SHAPE — long, short, flat, or irregular: the femur (thigh bone); a vertebra; the sternum (breastbone); a carpal (wrist bone)."
VETTED ANSWER: (a) any three of: support; protection; movement (bones as levers); mineral storage (calcium/phosphate); blood cell formation / hematopoiesis (red marrow); fat storage (yellow marrow). (b) femur = long; vertebra = irregular; sternum = flat; carpal = short.
RUBRIC: (a) 12 — three valid functions (~4 each); "making insulin" or "digesting food" earns 0 for that slot. (b) 12 — 3 each for the four shape calls.
FRESH VARIANT (for a re-attempt): "(a) Name TWO functions of bone AND state which marrow (red or yellow) makes blood cells. (b) Classify by shape: the humerus (arm bone); a rib; a tarsal (ankle bone); the mandible (jaw)." Answers: (a) any two valid functions; red marrow makes blood cells. (b) humerus = long; rib = flat; tarsal = short; mandible = irregular. Same rubric idea (scale points to the parts).

──────────── PROBLEM 2 (26 points) — Label the long-bone gross anatomy ────────────
SHOW ME: "For a long bone like the femur, name the part being described: (a) the long, tube-shaped shaft; (b) a rounded END of the bone (at a joint); (c) the cartilage 'growth plate' where the bone lengthens in a child; (d) the tough membrane covering the OUTER surface; (e) the hollow center of the shaft that holds marrow."
VETTED ANSWER: (a) diaphysis (shaft); (b) epiphysis (end); (c) epiphyseal plate (growth plate); (d) periosteum; (e) medullary cavity.
RUBRIC: 5 each for (a)–(d), 6 for (e) (=26). Half credit for a clearly-meant near-miss (e.g., "epiphyseal line" for the adult version of (c) = ~3). Reversing diaphysis/epiphysis = 0 for those parts.
FRESH VARIANT: "Name the part: (a) each rounded end of the bone; (b) the smooth cartilage capping the end where it meets another bone at a joint; (c) the thin membrane LINING the inside of the bone; (d) the long shaft; (e) where new blood cells are made (which marrow / where)." Answers: (a) epiphysis; (b) articular cartilage; (c) endosteum; (d) diaphysis; (e) red marrow (in spongy bone of the ends). Same rubric.

──────────── PROBLEM 3 (26 points) — Bone cells & remodeling (+ calcium) ────────────
SHOW ME: "(a) Match each bone cell to its job: osteoblast, osteoclast, osteocyte — which BUILDS bone, which BREAKS DOWN bone (releasing calcium), and which MAINTAINS bone? (b) Blood calcium drops too low. Which cell does the body activate, and what happens to blood calcium? (c) In one sentence: why does weight-bearing exercise make bones stronger (use the word 'remodeling')?"
VETTED ANSWER: (a) osteoBlast = builds; osteoClast = breaks down / resorbs (releases calcium); osteocyte = maintains. (b) the osteoclast is activated; it resorbs bone and releases calcium into the blood, raising the level back toward normal. (c) weight-bearing stress shifts remodeling toward net building (osteoblasts), so the bone gets denser/stronger (Wolff's law — bone adapts to the stress placed on it).
RUBRIC: (a) 12 — 4 each for the three cells. (b) 8 — names osteoclast (4) AND says calcium rises/is released into blood (4). (c) 6 — connects exercise/stress to remodeling/building. Saying osteoblast for (b), or reversing blast/clast in (a), earns 0 for that part.
FRESH VARIANT: "(a) Which cell builds bone and which chews it down to free calcium? (b) Astronauts in microgravity LOSE bone — which cell is winning, and why? (c) One sentence: is adult bone inert or constantly remodeled, and what evidence shows it?" Answers: (a) osteoblast builds, osteoclast breaks down; (b) the osteoclast is winning because there's no mechanical load (less stress → net breakdown); (c) constantly remodeled — evidence: fractures heal, exercise strengthens bone, blood calcium is buffered. Same rubric.

──────────── PROBLEM 4 (24 points) — Compact/osteon vs. spongy (structure→function) ────────────
SHOW ME: "(a) What is the basic structural UNIT of compact bone called, and describe it in one sentence (what's it built around?). (b) What is spongy bone made of instead — and does it contain osteons? (c) Structure→function: why does the body use a dense compact shell on the OUTSIDE and a lighter spongy lattice on the INSIDE, instead of making the whole bone solid?"
VETTED ANSWER: (a) the osteon (Haversian system) — concentric rings of bone matrix (lamellae) around a central canal that carries a blood vessel (osteocytes sit in lacunae between the rings). (b) spongy bone is made of an open lattice of struts called trabeculae (with red marrow in the gaps) and contains NO osteons. (c) a fully solid bone would be needlessly heavy; the dense compact shell bears the big loads while the spongy lattice reinforces along the lines of stress — strong where needed, but light (structure→function).
RUBRIC: (a) 8 — names osteon (4) + "rings around a central canal/vessel" (4). (b) 8 — trabeculae (4) + "no osteons" (4). (c) 8 — strength-with-less-weight / stress-aligned reasoning. Calling spongy bone "osteons" = 0 for (b).
FRESH VARIANT: "(a) In compact bone, what sits in the central canal of an osteon, and what are the cells in the lacunae called? (b) Name the struts of spongy bone and say which marrow fills the gaps. (c) Why are the trabeculae of spongy bone arranged along lines of stress rather than randomly?" Answers: (a) a blood vessel (and nerve); the cells are osteocytes; (b) trabeculae; red marrow; (c) so the bone resists the forces it actually experiences with the least material — strength where it's needed (structure→function). Same rubric.

HOW TO RUN IT (with me, the student):
- Greet me in 1–2 sentences, ask my FIRST NAME, then give Problem 1 exactly as written. (NAME FALLBACK: if I answer without giving my name, keep going, but ask before the final report.)
- ONE problem at a time. Never show the whole set, the answers, the rubrics, or the variants.
- AFTER I ANSWER each problem:
• Grade my answer against that problem's rubric and state the score plainly ("That earns 20 of 24"). Judge MEANING, not wording.
• Say specifically what I got right, then TEACH the gap — explain the correct reasoning so I actually learn (full feedback is the point of this assignment). If I reverse osteoblast/osteoclast or diaphysis/epiphysis, stop and fix that exact pair with me using the hooks (B = Build, C = Chew; diaphysis = shaft).
• OFFER A RE-ATTEMPT: "Want to raise your score? I'll give you a similar problem." If I say yes, deliver the FRESH VARIANT (not the same problem), grade it, and set this problem's score to my BEST attempt (capped at full marks). I can retry as many times as I want.
• Move on when I'm satisfied.
- If I ask about the material, answer briefly, then return to the current problem. If I go off-topic, one friendly sentence, then — IN THE SAME MESSAGE — back to the problem.
- Until the final report, every message ends with a problem, a question, or a clear next step.
- Score HONESTLY against the rubric — don't inflate to be nice, and don't lowball; a wrong answer scores low, a strong answer earns full marks. Grade only against the vetted key above.

COMPLETION + REPORT. After I've finished all four problems (and any re-attempts), produce the report in EXACTLY this format — the FIRST LINE is my score:
STUDENT'S SCORE: X/100
WEEK 7 ASSIGNMENT — Anatomy of a Bone
Student: [name] | Date: ___
Problem 1 (Functions & classification): a/24 — [one line]
Problem 2 (Long-bone gross anatomy): b/26 — [one line]
Problem 3 (Bone cells & remodeling): c/26 — [one line]
Problem 4 (Compact vs. spongy, structure→function): d/24 — [one line]
Strongest skill: ___
Worth another look: ___
(The four problem scores must add up to the number on line 1.) Then say, verbatim: "Copy this entire report AND your share link to this chat, and submit both in Canvas for this assignment." End with one genuine sentence of encouragement.

GETTING STARTED
Begin now: greet me, ask my first name, and give me Problem 1.

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ COPY EVERYTHING ABOVE THIS LINE ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Instructor grading note (Prof. Navarro)

• Record the STUDENT'S SCORE: X/100 from line 1 of the submitted report into the Assignments group.
• Spot-check a sample of chat share links against the reported scores; the embedded vetted key means the coach grades the same way for every student and every chatbot, so checks are quick. Watch for the blast/clast reversal slipping through.
• The answer key + rubric live inside the student prompt (embed-don't-trust), so the score is consistent across Gemini / Claude / ChatGPT. Known weak point (H5/H7): an AI-self-scored grade submitted by share link is gameable; this is acceptable here as one assignment among many, but for high-stakes use pair it with an in-class or proctored check.

Canvas placement block

canvas_object    = Assignment
title            = "Week 7 Assignment — Anatomy of a Bone (adaptive)"
assignment_group = "Assignments"
points_possible  = 100
grading_type     = points
assignment_type  = adaptive
submission_types = [online_text_entry, online_url]   # paste the report (score on line 1) + the chat share link
due_offset_days  = 6
published        = true
provenance       = "~ Prof. Navarro's edition · Fall 2026 · built with thecoursemaker.com"

Traditional variant — for comparison. This sample course is configured adaptive learning, so its actual Week-7 assignment is the AI-coached, self-scored version in I-assignment-and-rubric-week-07.md. This file shows the same Week-7 skills built the traditional way — the student completes the work and submits it, and the instructor grades against the rubric — so you can see both formats side by side. (Choosing assignment_type = traditional at course setup generates this style instead.)

Course: Anatomy & Physiology I (BIOL 2301 + BIOL 2101) · Silver Oak University (fictional sample) · Prof. Navarro
Objective assessed: Objective 4 (functions & classification of bone; gross & microscopic bone anatomy; the bone cells; remodeling & calcium homeostasis) · SLO A (relate structure to function) · SLO B (use skeletal terminology)
Worth 100 points · Assignments group = 15% of the grade

The Assignment

This week you studied bone as a living tissue. In four short parts, you'll list what bones do and classify them, label the gross anatomy of a long bone, sort the three bone cells and reason about remodeling, and explain why compact and spongy bone are built the way they are. Submit your answers as a document upload or text entry in Canvas. You'll be graded on the rubric below — read it before you start.

Part 1 — Functions & classification (24 pts). (a) Name three functions of the skeletal system. (b) Classify each bone by shape (long, short, flat, or irregular): the femur; a vertebra; the sternum; a carpal (wrist bone); the humerus; a rib.

Part 2 — Label the long-bone gross anatomy (26 pts). For a long bone like the femur, name the part being described: (a) the long, tube-shaped shaft; (b) a rounded end of the bone (at a joint); (c) the cartilage growth plate where the bone lengthens in a child; (d) the tough membrane covering the outer surface; (e) the hollow center of the shaft that holds marrow; (f) the smooth cartilage capping the end where two bones meet at a joint.

Part 3 — Bone cells & remodeling (26 pts). (a) For each cell, state its job: osteoblast, osteoclast, osteocyte (which builds, which breaks down/releases calcium, which maintains). (b) Blood calcium drops too low — which cell does the body activate, and what happens to blood calcium? (c) In one sentence, explain why weight-bearing exercise strengthens bone (use the word remodeling), and why astronauts lose it.

Part 4 — Compact vs. spongy (structure→function) (24 pts). (a) Name the basic unit of compact bone and describe it in one sentence (what's it built around?). (b) What is spongy bone made of instead — and does it contain osteons? (c) Why does the body use a dense compact shell on the outside and a lighter spongy lattice on the inside, rather than making the whole bone solid?

Integrity & AI note. This is your own work, submitted for grading. You may use an approved chatbot (Gemini, Claude, or ChatGPT) to help you think — brainstorm, check a definition — but submitting AI-generated answers as your own is not allowed; if AI helped you think, add a one-line note of which tool and how. (Note: this is the traditional format. In this course's actual adaptive assignment, you work the problems with the chatbot and submit its self-scored report — see I-assignment-and-rubric-week-07.md.)

Rubric — 100 points

Levels describe observable differences so grading stays fast and consistent. (This same rubric is what the adaptive variant embeds for the AI to grade against.)

Instructor answer key — REMOVE BEFORE PUBLISHING TO STUDENTS

Every bone fact below is verified against standard anatomy (OpenStax A&P Ch. 6; InnerBody Skeletal System).

• Part 1: (a) any three of: support; protection; movement (levers); mineral storage (calcium/phosphate); blood cell formation / hematopoiesis (red marrow); fat storage (yellow marrow). ("Making insulin" and "digesting food" are NOT bone functions.) (b) femur = long; vertebra = irregular; sternum = flat; carpal = short; humerus = long; rib = flat.
• Part 2: (a) diaphysis (shaft); (b) epiphysis (end); (c) epiphyseal plate (growth plate; fuses to the epiphyseal line in adults); (d) periosteum (outer membrane); (e) medullary cavity (hollow shaft center, marrow); (f) articular cartilage (smooth cap at the joint surface).
• Part 3: (a) osteoBlast = builds new bone matrix; osteoClast = breaks down / resorbs bone, releasing calcium; osteocyte = maintains mature bone. (b) the osteoclast is activated → resorbs bone → releases calcium into the blood, raising the level back toward normal. (c) weight-bearing stress shifts remodeling toward net building (osteoblasts), so bone gets denser/stronger (Wolff's law); in microgravity there's no mechanical load, so breakdown (osteoclasts) wins and astronauts lose bone — possible only because bone is living, dynamic tissue.
• Part 4: (a) the osteon (Haversian system) — concentric rings of matrix (lamellae) around a central canal carrying a blood vessel; osteocytes sit in lacunae between the rings. (b) spongy bone = an open lattice of trabeculae (red marrow in the gaps), with no osteons. (c) a fully solid bone would be needlessly heavy; the dense compact shell bears big loads on the outside while the spongy lattice reinforces along the lines of stress inside — strong where needed but light (structure→function).

Canvas placement block

canvas_object    = Assignment
title            = "Week 7 Assignment — Anatomy of a Bone (traditional)"
assignment_group = "Assignments"
points_possible  = 100
grading_type     = points
assignment_type  = traditional
submission_types = [online_upload, online_text_entry]
due_offset_days  = 6
published        = true
rubric_ref       = "week-07-assignment-rubric"
provenance       = "~ Prof. Navarro's edition · Fall 2026 · built with thecoursemaker.com"