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Goal: Plot ages against distance and defend a qualified spreading interpretation with two data comparisons.

Before this: Use signed coordinates and unit conversions.

Try together: Together predict the model age at +300 km if the same average rate continued, then label it a prediction rather than a supplied measurement.

Goal: Construct two energy budgets and explain the direction of the initial change under stated assumptions.

Before this: Add and subtract energy quantities.

Try together: Together analyze an initial outgoing-radiation decrease from 70 to 68 while reflection remains 30.

Goal: Calculate net reservoir changes and explain how a transfer can conserve carbon while increasing atmospheric stock.

Before this: Distinguish a total amount from an amount per year.

Try together: Together calculate the atmospheric change if the fossil transfer were 3 instead of 8, with all other modeled flows unchanged.

Goal: Recommend a feasible strategy with two numerical comparisons and an explicit tradeoff.

Before this: Compare costs, percentages and constraints.

Try together: Together explain why 100 refurbished frames would exceed the supplied inspection capacity even though the purchase price is lower.

Goal: Evaluate a habitat proposal against three criteria and propose a testable refinement.

Before this: Interpret averages and distinguish before/after evidence from a causal conclusion.

Try together: Together label every predicted quantity in a comparison table and explain why it should not be presented as a measured success.

Goal: Compare two scenario rates and write a qualified explanation with one associated impact and two uncertainties.

Before this: Calculate a finite change per decade and read a graph.

Try together: Together explain why the shared 0.5°C starting anomaly is not a statement that either place’s absolute temperature is 0.5°C.