This packet is everything a parent or guide needs to assess Unit 01 at home — the 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 observing specimens, working a dichotomous key, and reasoning from observable traits aloud.
By the end of the What Is an Animal? unit, a student should be able to:
Six criteria, each judged Not yet / Approaching / Mastered (Page 3).
Unknown specimens keyed to a name from observable traits — done live.
The student reasons from observable traits aloud (Page 4 anchors).
Contemporaneous record of observations, sketches, and the unknown ID.
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 run the technique and justify the animal biology 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 |
|---|---|---|
| What defines an animal | ||
| Multicellular | made of many cells | A single-celled amoeba is a protist, not an animal |
| Heterotroph | must eat other living things | Plants make their own food (autotrophs); animals cannot |
| No cell wall | animal cells lack a wall | Plants, fungi, and many protists have cell walls; animals never do |
| Blastula | hollow ball of cells; early embryo | The developmental stage every animal passes through |
| Classification & symmetry | ||
| Classification ranks | domain, kingdom, phylum, class, order, family, genus, species | Each rank is broader than the one below it |
| Species | one kind of organism | The narrowest rank; members breed and produce fertile young |
| Radial symmetry | body parts arranged around a center | No left/right and no head end — a jellyfish or anemone |
| Bilateral symmetry | mirror-image left and right halves | Comes with a head end (cephalization) and a front and back |
| Grouping animals | ||
| Vertebrate | animal with a backbone | Fish, amphibians, reptiles, birds, mammals — the minority |
| Invertebrate | animal without a backbone | The vast majority of animals; not a formal group, just “no backbone” |
| Arthropod | jointed-limb invertebrate with an exoskeleton | Insects, arachnids, crustaceans — a spider is one, not an insect |
| Dichotomous key | paired either/or questions leading to a name | Each step splits the choices in two until one name is left |
| Criterion | Not yet | Approaching | Mastered |
|---|---|---|---|
| What defines an animal | Cannot say what separates animals from plants, fungi, or protists. | Lists a trait or two but leaves out key ones or includes traits animals don’t share. | Names the defining traits — multicellular, heterotrophic, no cell walls, most move, develop from a blastula — and uses them to test an organism. |
| Levels of classification | Thinks “animal” is one flat group with no inner structure. | Knows there are ranks but scrambles their order or which is broader. | Places an animal in the nested ranks from domain to species and explains why each level is broader than the one below. |
| Sorting by traits & symmetry | Groups animals by looks alone — size or color — with no defining traits. | Uses some traits but confuses radial with bilateral symmetry. | Sorts specimens by body plan and symmetry, tells radial from bilateral, and defends each grouping from evidence. |
| Vertebrate vs. invertebrate | Cannot say what a backbone is or which animals have one. | Names the two groups but misplaces borderline animals. | Distinguishes vertebrates from invertebrates, knows invertebrates are the vast majority, and places examples correctly. |
| Lab technique (dichotomous key / observation) | Skips the key or guesses a name without observing. | Follows the key but misreads a trait or takes the wrong branch. | Works a dichotomous key with a hand lens, records observations and sketches, and identifies an unknown specimen. |
| Integration (cross-domain) | Treats the science as isolated facts. | Names a link to history, reading, or writing but cannot defend it. | Connects the unit across History · Reading · Writing and defends why it matters. |
Work down the criteria one at a time. Ask the student to reason it out rather than recall — “why is a spider not an insect?” The defining traits (leg count, body parts, antennae) are where Approaching and Mastered separate. Naming an animal is Approaching; explaining which traits place it is Mastered.
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 | What defines an animal | NY / Appr / Mast | |
| 2 | Levels of classification | NY / Appr / Mast | |
| 3 | Sorting by traits & symmetry | NY / Appr / Mast | |
| 4 | Vertebrate vs. invertebrate | NY / Appr / Mast | |
| 5 | Lab technique (dichotomous key / observation) | 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.