Integration is not decoration — it is a deliberate method for making each unit reach outward into history, reading, and writing first, then into geography, ethics, data, and economics, so the geology becomes something a student can think with rather than just recall. Memory is associative: a formula lashed to a discovery, a controversy, and a consequence is held by a dozen threads instead of one.
Every unit radiates the same structured set of connections off the science spine — three tiers plus a quantitative lane. This is what keeps the cross-domain work rigorous instead of random.
| Tier | What it carries |
|---|---|
| Core spokes always required | History, Reading, Writing. Every unit names who discovered the idea and what they got wrong first, gives a real text to read (primary source, biography, living book — not a textbook chapter), and asks for writing in the student’s own voice. These run in every unit, no exceptions. |
| Standard spokes where they fit | Geography (where in the world this matters — industry, resources, environment) and soft social studies (the ethical and policy stakes). Where a unit genuinely doesn’t carry these, we move them to the elective pool rather than fake a connection. |
| Elective spokes pick ~two of five | Data & quantitative · Ethics · Economics · Technology & engineering · Art & design. Additive depth, never a substitute for the core. Letting students choose feeds wonder and lets faster students go deeper. |
| Applied-math lane always present | Math is not a spoke — we use math, we are not a math program. Geology leans on math more than most sciences; every unit names the specific math the geology actually requires, done inside the lab context. The per-unit lane is on Page 3. |
Integration is graded as its own strand, separate from the science-mastery criteria. A student can be Mastered on the geology and only Approaching on integration, or the reverse — which keeps the science bar pure while still rewarding cross-domain depth.
Every unit has an anchor built the same way. Each row names the unit’s geologic big idea and the real-world anchor that carries the History, Reading, and Writing core — a doorway, not a detour.
| Unit | Geology big idea | Integration anchor |
|---|---|---|
| 01 Minerals | Minerals are the ordered building blocks of all rock, each fixed by composition and crystal structure. | Identifying minerals by testable properties — hardness, streak, cleavage; from Agricola’s De re metallica to the Mohs scale. |
| 02 Igneous Rocks & Volcanism | Molten rock cools and crystallizes; cooling rate sets texture, and eruptions shape the land. | The Neptunist–Plutonist debate Hutton helped settle — that basalt froze from melt, not seawater. |
| 03 Sedimentary Rocks & Stratigraphy | Grains and dissolved minerals settle and cement into layered rock that records its environment. | Steno’s laws of superposition and original horizontality — the foundation of relative dating and the stratigraphic column. |
| 04 Metamorphic Rocks & the Rock Cycle | Heat and pressure recrystallize rock without melting it; the three families convert into one another. | Hutton’s rock cycle — the first truly cyclic model of the Earth, with no beginning and no end. |
| 05 Plate Tectonics & Mountain Building | Rigid plates ride a mobile interior; their collisions raise mountains and reshape continents. | The synthesis of seafloor and earthquake data into plate tectonics — plate motion measured in centimeters per year. |
| 06 Earthquakes & Earth’s Interior | Seismic waves from faulting travel through the Earth and reveal its hidden layered interior. | How seismograph traces exposed the core–mantle boundary — students locate an epicenter from wave arrival times. |
| 07 Weathering, Erosion & Landforms | Water, ice, and mineral breakdown wear rock down and carry it off, sculpting the landscape. | The slow carving of canyons as evidence for deep time — erosion rates and Lyell’s uniformitarianism. |
| 08 Geologic Time & Earth History | The rock and fossil record, read by relative and radiometric methods, orders Earth’s history. | Hutton at Siccar Point and Lyell’s Principles of Geology — the half-life math that put numbers on deep time. |
Big idea: the Earth is endlessly built up, worn down, and rebuilt over spans so vast Hutton found “no vestige of a beginning, no prospect of an end.” Anchor: the angular unconformity at Siccar Point — near-vertical layers planed flat, with tilted layers laid across the top, a sequence demanding almost unimaginable time. Question: students read the outcrop, reconstruct the order of events, and use half-life arithmetic to assign real ages. Connection back: this is geologic time and the rock cycle — the discovery that shaped Lyell, and through Lyell, Darwin.
Math never drives a unit, but geology uses it constantly — always anchored to the rock, map, or measurement in the field. Here is the quantitative skill each unit actually uses, done inside the lab context rather than as a parallel curriculum.
| Unit | Applied math (in the lab context) |
|---|---|
| 01 Minerals | Mohs hardness ordering; crystal-symmetry counting; specific-gravity and density arithmetic. |
| 02 Igneous Rocks & Volcanism | Cooling-rate versus crystal-size reasoning; percent-mineral composition; eruption-volume estimates. |
| 03 Sedimentary Rocks & Stratigraphy | Reading a stratigraphic column to scale; deposition-rate arithmetic; ordering events by superposition. |
| 04 Metamorphic Rocks & the Rock Cycle | Pressure–temperature grade estimates; depth-from-pressure conversions; proportional reasoning around the rock cycle. |
| 05 Plate Tectonics & Mountain Building | Plate-motion rates (cm/year); distance = rate × time over geologic spans; vectors at plate boundaries. |
| 06 Earthquakes & Earth’s Interior | Locating an epicenter from P- and S-wave arrival times; the logarithmic magnitude scale; travel-time math. |
| 07 Weathering, Erosion & Landforms | Weathering- and erosion-rate calculations; sediment-yield arithmetic; slope and gradient measurement. |
| 08 Geologic Time & Earth History | Radiometric dating and half-life arithmetic; parent-to-daughter decay ratios; scaling 4.6 billion years to one timeline. |
Students do the half-life arithmetic inside the deep-time investigation, the epicenter math inside the seismogram exercise, the deposition-rate calculation inside the stratigraphy lab. The number always means something because it is attached to a result they produced — never a worksheet detached from the geology.
Integration is its own strand. Track each unit’s integration level across the year — Not Yet, Approaching, or Mastered — separate from the science-mastery rubric. Record demonstration tokens earned in the final column.
| Unit | Not Yet | Approaching | Mastered | Tokens |
|---|---|---|---|---|
| 01 Minerals | ◯ | ◯ | ◯ | ______ |
| 02 Igneous Rocks & Volcanism | ◯ | ◯ | ◯ | ______ |
| 03 Sedimentary Rocks & Stratigraphy | ◯ | ◯ | ◯ | ______ |
| 04 Metamorphic & Rock Cycle | ◯ | ◯ | ◯ | ______ |
| 05 Plate Tectonics | ◯ | ◯ | ◯ | ______ |
| 06 Earthquakes & Interior | ◯ | ◯ | ◯ | ______ |
| 07 Weathering & Erosion | ◯ | ◯ | ◯ | ______ |
| 08 Geologic Time | ◯ | ◯ | ◯ | ______ |
A student who walks through all eight anchors finishes understanding that geology is how humans learned to read time in stone, and that every principle on the page was once a discovery someone fought for — the version of the subject a student keeps.