This packet is everything a parent or guide needs to assess Unit 06 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 building and using a dichotomous key and defending each choice aloud.
By the end of the Classification & the Kingdoms of Life unit, a student should be able to:
Six criteria, each judged Not yet / Approaching / Mastered (Page 3).
Sort real specimens; build and test a key that works.
The student defends each yes/no choice aloud (Page 4).
The key's steps, the specimens, and the identifications 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 make the identification and defend the traits 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 |
|---|---|---|
| Sorting & naming | ||
| Classification | grouping, sorting | Grouping living things by the traits they share — not by size alone |
| Trait | characteristic, feature | An observable feature used to sort — like leaf edge or number of legs |
| Species | one kind of organism | A group whose members can breed and produce offspring like themselves |
| Scientific name | two-part name | Genus + species, written the same way worldwide so everyone agrees |
| Keys & kingdoms | ||
| Dichotomous key | yes/no identification key | Splits a group with paired yes/no questions until one organism is left |
| Kingdom | major group of life | One of the big groups scientists sort all living things into |
| Domain | broadest group | The widest sorting level, above kingdoms (survey level) |
| Genus | first name in the pair | The larger group a species belongs to; the first, capitalized word in the name |
| Criterion | Not yet | Approaching | Mastered |
|---|---|---|---|
| Sorting by shared traits | Groups organisms by one surface clue, like color. | Groups by traits but relies on just one at a time. | Sorts living things into groups using several shared, observable traits. |
| The kingdoms of life | Thinks living things are just plants and animals. | Names a few kingdoms but not what sets them apart. | Names the main kingdoms of life and gives a key trait for each at a survey level. |
| Species & scientific names | Doesn’t know living things have scientific names. | Knows names exist but writes them incorrectly. | Explains what a species is and reads a two-part scientific name correctly. |
| Reading a dichotomous key | Can’t follow a key’s yes/no steps. | Follows a key but gets lost on harder branches. | Uses a dichotomous key to identify an unknown organism, step by step. |
| Lab technique (building & using a dichotomous key) | Writes key steps that are vague or don’t split the group. | Builds a key but the questions overlap or leave gaps. | Builds a working dichotomous key with clear yes/no traits and tests it on real specimens. |
| 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 the key actually works: a real key sends every specimen down exactly one branch. Ask “do your yes/no questions leave any organism with no path, or two paths?”
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 | Sorting by shared traits | NY / Appr / Mast | |
| 2 | The kingdoms of life | NY / Appr / Mast | |
| 3 | Species & scientific names | NY / Appr / Mast | |
| 4 | Reading a dichotomous key | NY / Appr / Mast | |
| 5 | Lab technique (building & using a dichotomous key) | 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.