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 earth science 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. Earth Science leans on real measurement and data; every unit names the specific math the earth science 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 earth science 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 earth-science big idea and the real-world anchor that carries the History, Reading, and Writing core — a doorway, not a detour.
| Unit | Earth Science big idea | Integration anchor |
|---|---|---|
| 01 Earth’s Structure & Plate Tectonics | The rigid plates ride the flowing asthenosphere; their motion builds and destroys the surface. | Wegener’s continental drift — matching coastlines, fossils, and strata rejected for want of a mechanism, vindicated by seafloor spreading and the magnetic stripes. |
| 02 Minerals & Rocks | Minerals are identified by testable physical properties; the rock cycle recycles them. | James Hutton at Siccar Point and Mohs’ 1812 hardness scale — the birth of the rock cycle and “deep time.” |
| 03 Weathering, Erosion & Soil | Surface processes break rock down and move sediment, building soil over time. | The 1930s Dust Bowl — plowed prairie, drought, and topsoil lost to the wind; pair with The Worst Hard Time. |
| 04 Earth’s History & Geologic Time | Rock layers and radiometric dating record billions of years of Earth history. | The discovery of deep time — from Ussher’s 6,000 years to Patterson’s 1953 dating of Earth at 4.5 billion years. |
| 05 The Atmosphere & Weather | Uneven solar heating drives circulation, pressure systems, and weather. | Robert FitzRoy and the first storm forecasts after the 1859 Royal Charter gale — the telegraph made a national forecast possible. |
| 06 Climate & Climate Change | Earth’s climate has natural cycles; greenhouse gases now drive rapid change. | The Keeling Curve — continuous CO₂ from Mauna Loa (1958), foreshadowed by Eunice Foote in 1856; read the ice-core record. |
| 07 The Hydrosphere | Water cycles through ocean, atmosphere, and land; currents move planetary heat. | Franklin’s 1770 Gulf Stream chart and Maury’s ocean-current maps — reading the sea as a system. |
| 08 Astronomy & Earth in Space | Earth’s motions and place in the solar system explain days, seasons, tides, and eclipses. | The Copernican Revolution — Ptolemy to Copernicus to Galileo, evidence against authority; pair with Galileo’s Sidereus Nuncius. |
Big idea: the rigid outer shell of the Earth is broken into plates that move, reshaping the surface. Anchor: in 1912 Wegener argued the continents were once joined in Pangaea — matching coastlines, fossils, and strata — but he was rejected for fifty years for want of a mechanism, until seafloor spreading and the magnetic stripes supplied it. Question: students reassemble Pangaea and compute plate-motion rates in cm/year. Connection back: this is plate tectonics — and whether the establishment was right to demand a mechanism is the essay students argue.
Math never drives a unit, but earth science uses it constantly — always anchored to the reaction or measurement 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 (in the lab context) |
|---|---|
| 01 Earth’s Structure & Plate Tectonics | Plate-motion rates (cm/year); map scale and distance; triangulating an epicenter from three seismograms. |
| 02 Minerals & Rocks | Density (mass ÷ volume); the Mohs hardness scale; percent composition of a rock sample. |
| 03 Weathering, Erosion & Soil | Rates of erosion and sediment transport; slope and gradient; soil-horizon proportions. |
| 04 Earth’s History & Geologic Time | Radiometric half-life decay; ordering strata by superposition; scaling geologic time onto a number line. |
| 05 The Atmosphere & Weather | Reading isobars and station models; temperature and pressure gradients; dew-point and humidity arithmetic. |
| 06 Climate & Climate Change | Trend lines on the CO₂ and temperature record; averages and anomalies; reading ice-core time series. |
| 07 The Hydrosphere | Stream discharge and flow rate; salinity and density calculations; tracing heat transport by currents. |
| 08 Astronomy & Earth in Space | Kepler’s third law (period vs. distance); scale of the solar system; angle of sunlight and the seasons. |
Students compute the plate-motion rate inside the Pangaea reassembly, the half-life inside the geologic-time lab, the stream discharge inside the stream table. The number always means something because it is attached to a result they produced — never a worksheet detached from the earth science.
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 Earth’s Structure & Plate Tectonics | ◯ | ◯ | ◯ | ______ |
| 02 Minerals & Rocks | ◯ | ◯ | ◯ | ______ |
| 03 Weathering, Erosion & Soil | ◯ | ◯ | ◯ | ______ |
| 04 Earth’s History & Geologic Time | ◯ | ◯ | ◯ | ______ |
| 05 The Atmosphere & Weather | ◯ | ◯ | ◯ | ______ |
| 06 Climate & Climate Change | ◯ | ◯ | ◯ | ______ |
| 07 The Hydrosphere | ◯ | ◯ | ◯ | ______ |
| 08 Astronomy & Earth in Space | ◯ | ◯ | ◯ | ______ |
A student who walks through all eight anchors finishes understanding that earth science is how humans learned to reshape matter, and that every formula on the page was once a discovery someone fought for — the version of the subject a student keeps.