Use the science to investigate a real source, explain the evidence, and communicate a defensible conclusion. The guide supplies the actual reading, data, task, and chosen level before the unit begins.
| Strand | Required evidence |
|---|---|
| History, Reading, Writing | Use an approved source in context and a student-authored response. Separate the original evidence from later explanations; do not force a single-hero story. |
| Geography and ethics | Include location, social context, or ethical trade-offs where they genuinely support the scientific question. |
| Elective extensions | Choose additional depth in data, technology, economics, or art. Extensions do not replace the core work. |
| Quantitative science | Use the unit's mathematical lane at the agreed level. Supply units, denominators, and model conditions; required science is assessed as science. |
Integration is reported separately and cannot lower the science grade or block a science demonstration pass. Science and practical criteria determine that pass.
Use the same approved task in both formats. The web guide explains the source, data, assumptions, student work, and evidence checklist; this packet is its portable summary, not a different assignment.
Use the web guide's approved unit assignment.
| Unit | Microscopy big idea | Integration anchor |
|---|---|---|
| 01 The Microscope: Parts, Care & Focusing | A compound microscope is a precise instrument; each part shapes the image, and care and focusing come first. | Hooke’s Micrographia (1665) and the first instruments of the Scientific Revolution — write how a new instrument let people “see for themselves.” |
| 02 Magnification, Resolution & Measurement | Magnification enlarges, resolution separates — and every observation needs a scale. | The problem of measuring the invisibly small — Leeuwenhoek sizing his animalcules against a grain of sand; calibrate the field of view. |
| 03 Preparing Wet Mounts | A clean wet mount — slide, drop, coverslip, no bubbles — is the foundation of every observation. | Leeuwenhoek’s improvised mounts of rainwater, scrapings, and pond water — students write a plain first-person method in the style of his letters. |
| 04 Staining & Contrast Techniques | Most cells are nearly transparent; stains and lighting reveal structure the eye would miss. | The long search for contrast, from Hooke’s oblique lighting to the dyes that made histology possible. |
| 05 Plant Cells & Tissues Under the Scope | Plant tissue reveals cell walls, chloroplasts, and the boxlike cells Hooke first named. | Hooke’s cork observation — the moment he coined “cell” — and the rise of cell theory; read the cork passage from Micrographia. |
| 06 Animal Cells & Histology | Animal cells lack walls; histology reads tissue as layered structure. | The birth of histology and the microscope’s entry into medicine — read an intro to cell theory (Schleiden, Schwann); write on how it changed diagnosis. |
| 07 Microorganisms: Protists, Algae & Bacteria | A whole living world — protists, algae, bacteria — moves below the unaided eye’s reach. | Leeuwenhoek’s 1676 “animalcules” — the worked example. His letters, the Royal Society’s disbelief, the first-person observation letter. |
| 08 Micrography: Drawing, Scale & Imaging | A labeled drawing with a scale bar is the microscopist’s primary record. | Hooke’s Micrographia engravings — the flea, the fly’s eye — that stunned London; produce a plate of your own specimen, drawn to scale. |
Read approved Hooke or Leeuwenhoek excerpts, then use prepared slides, recorded images, or approved teaching specimens. Do not grow unknown environmental cultures for a reenactment. Calibrate the ocular scale against a stage micrometer, report what the image resolves, and write an observation letter distinguishing evidence from inference and instrument limitations.
Math never drives a unit, but microscopy uses measurement constantly — always anchored to what the student sees at the bench. Here is the quantitative skill each unit actually uses, done inside the lab context rather than as a parallel curriculum.
| Unit | Applied math at the agreed level |
|---|---|
| 01 The Microscope: Parts, Care & Focusing | Total magnification = objective × ocular; ratio arithmetic; reading the numbers engraved on each lens. |
| 02 Magnification, Resolution & Measurement | Calibrate the ocular scale against a stage micrometer for each objective; calculate field of view, specimen size, units, and measurement uncertainty. |
| 03 Preparing Wet Mounts | Estimating specimen density across a field; proportional reasoning for drop size and coverage. |
| 04 Staining & Contrast Techniques | Proportional mixing of stain to water; timing intervals; comparing before-and-after contrast. |
| 05 Plant Cells & Tissues Under the Scope | Measuring cell dimensions with an ocular micrometer; averaging across a field of view. |
| 06 Animal Cells & Histology | Counting and proportion across tissue fields; estimating cell size from the scale bar. |
| 07 Microorganisms: Protists, Algae & Bacteria | Estimating population from a counting grid; measuring motility as distance ÷ time; scale estimation. |
| 08 Micrography: Drawing, Scale & Imaging | Scale-bar arithmetic; drawing-to-specimen ratio (drawing magnification); proportional scaling. |
Students do the magnification arithmetic while working the scope, the field-of-view calibration while measuring a specimen, the scale-bar math while drawing what they found. The number always means something because it is attached to a specimen they observed — never a worksheet detached from the bench.
Integration is its own strand. Track each unit’s integration level across the year — Developing, Proficient, or Mastery — separate from the technique-mastery rubric. Record the evidence reference and date in the final column.
| Unit | Developing | Proficient | Mastery | Evidence / date |
|---|---|---|---|---|
| 01 The Microscope & Focusing | ◯ | ◯ | ◯ | ______ |
| 02 Magnification & Measurement | ◯ | ◯ | ◯ | ______ |
| 03 Preparing Wet Mounts | ◯ | ◯ | ◯ | ______ |
| 04 Staining & Contrast | ◯ | ◯ | ◯ | ______ |
| 05 Plant Cells & Tissues | ◯ | ◯ | ◯ | ______ |
| 06 Animal Cells & Histology | ◯ | ◯ | ◯ | ______ |
| 07 Microorganisms | ◯ | ◯ | ◯ | ______ |
| 08 Micrography & Scale | ◯ | ◯ | ◯ | ______ |
A student who walks through all eight anchors finishes understanding that microscopy is how humans first saw the invisible world, and that every skill on the ladder was once a discovery someone fought to be believed — the version of the subject a student keeps.