# SSAC General Collection Modules

Following are short descriptions of the available modules. To access any of them, select from the list and you will connect to cover material including learning goals, context of use, and other information. Within the cover material (under "Teaching Materials") there is a link by which you can download the student version of the module. You can also request an instructor's version by clicking on the "request" link under Teaching Materials.

There are a couple of ways of searching for modules. The box below left provides a full-text search of the cover material about the module, so you can search by author, subject, or keyword. The controlled vocabularies below right allow targeted searches by three different dimensions (click on the links to see the full, hierarchical vocabularies): Math content (Quantitative Concept) (Microsoft Word 41kB Jun17 10), Context (Subject) (Microsoft Word 29kB Jul13 07), and Excel Skill (Microsoft Word 32kB Jul13 07).

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# Excel Skills

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Predator-Prey Interactions -- Modeling the Number of Fishers and Porcupines in New Hampshire part of Spreadsheets Across the Curriculum:General Collection:Examples
Spreadsheets Across the Curriculum activity/Introductory Ecology course. Students build and manipulate spreadsheets to model and graph populations using the Lotka-Volterra predator-prey equations.

Quantitative Concepts: Measurement; Data presentation and analysis; Probability:Visual display of data :XY scatter plots, Basic arithmetic; Number sense:Rates:Rates of Change, Algebra; Modeling; Functions:Modeling:Forward modeling, Calculus; Numerical methods:Differential equations including difference equations, Creating and manipulating tabular data
Subject: Natural science:Biology
Excel Skills: Graphs and Charts:XY Scatterplot:Multiple Plots, One Plot, Basic Arithmetic:Simple Formulas, Nested Formulas

Earth's Planetary Density: Constraining What We Think about the Earth's Interior part of Spreadsheets Across the Curriculum:General Collection:Examples
Spreadsheets Across the Curriculum module. Students build spreadsheets to forward calculate the Earth's aggregate density from combinations of densities and thicknesses of the Earth's four shells.

Quantitative Concepts: Measurement; Data presentation and analysis; Probability:Visual display of data :Pie charts, Calculus; Numerical methods:Numerical integration including Riemann sum, Derivatives and integrals (analytical), Algebra; Modeling; Functions:Manipulating equations, Basic arithmetic; Number sense:Units and Dimensions, Logarithms; orders of magnitude; scientific notation, Algebra; Modeling; Functions:Modeling:Forward modeling, Inverse problem, Basic arithmetic; Number sense:Average; weighted average, Geometry; Trigonometry :Spheres
Subject: Natural science:Earth science
Excel Skills: Basic Arithmetic:Arithmetic Functions:SUM, Graphs and Charts:Pie Chart, Angles and Trig Functions:PI, Basic Arithmetic:Nested Formulas, Arithmetic Functions:SUMPRODUCT, Basic Arithmetic:Simple Formulas

Introducing Endangered Birds to Ulva, NZ -- Modeling exponential and logistic growth of the yellowhead population part of Spreadsheets Across the Curriculum:General Collection:Examples
Spreadsheets Across the Curriculum module. Students build spreadsheets to model the growth in population of a species of birds introduced to an isolated island in New Zealand.

Quantitative Concepts: Algebra; Modeling; Functions:Nonlinear functions of a single variable:Exponential (geometric) growth:Logistic function, Basic arithmetic; Number sense:Rates:Rates of Change, Algebra; Modeling; Functions:Modeling:Forward modeling, Algebra; Modeling; Functions:Nonlinear functions of a single variable:Exponential function, Calculus; Numerical methods:Differential equations including difference equations, Finding maximum/minimum, Creating and manipulating tabular data, Measurement; Data presentation and analysis; Probability:Visual display of data :XY scatter plots, Reading graphs
Subject: Natural science:Biology
Excel Skills: Basic Arithmetic:Simple Formulas, Nested Formulas, Graphs and Charts:XY Scatterplot:One Plot

Chaos in Population Dynamics -- Understanding Chaos in the Logistic Model part of Spreadsheets Across the Curriculum:General Collection:Examples
Spreadsheets Across the Curriculum module. Students build spreadsheets to explore conditions that lead to chaotic behavior in logistic models of populations that grow discretely.

Quantitative Concepts: Algebra; Modeling; Functions:Nonlinear functions of a single variable:Exponential function, Basic arithmetic; Number sense:Rates, Ratio and proportion; percentage; interpolation, Algebra; Modeling; Functions:Nonlinear functions of a single variable:Exponential (geometric) growth:Logistic function, Measurement; Data presentation and analysis; Probability:Descriptive statistics; trend lines :Goodness of fit (R2), Calculus; Numerical methods:Differential equations including difference equations, Algebra; Modeling; Functions:Modeling:Forward modeling, Algebra; Modeling; Functions:Multivariable functions, Calculus; Numerical methods:Iteration, Creating and manipulating tabular data, Measurement; Data presentation and analysis; Probability:Descriptive statistics; trend lines :Line- and curve-fitting, Measurement; Data presentation and analysis; Probability:Visual display of data :XY scatter plots
Subject: Mathematics, statistics and computers:Mathematics, Natural science:Biology
Excel Skills: Basic Arithmetic:Simple Formulas, Graphs and Charts:XY Scatterplot:One Plot, Multiple Plots, Basic Arithmetic:Nested Formulas

Radioactive Decay and Popping Popcorn -- Understanding the Rate Law part of Spreadsheets Across the Curriculum:General Collection:Examples
Spreadsheets Across the Curriculum module. Students build spreadsheets to forward model an example of exponential decay and interpret the meaning of the decay constant.

Quantitative Concepts: Measurement; Data presentation and analysis; Probability:Descriptive statistics; trend lines :Goodness of fit (R2), Measurement; Data presentation and analysis; Probability:Probability, Basic arithmetic; Number sense:Ratio and proportion; percentage; interpolation, Units and Dimensions:Dimensions, Basic arithmetic; Number sense:Rates:Rates of Change, Measurement; Data presentation and analysis; Probability:Descriptive statistics; trend lines :Line- and curve-fitting, Algebra; Modeling; Functions:Modeling:Forward modeling, Algebra; Modeling; Functions:Nonlinear functions of a single variable:Exponential decay, Exponential function, Calculus; Numerical methods:Differential equations including difference equations, Creating and manipulating tabular data, Measurement; Data presentation and analysis; Probability:Visual display of data :Logarithmic scale, XY scatter plots
Subject: Natural science:Physics, Chemistry
Excel Skills: Basic Arithmetic:Nested Formulas, Graphs and Charts:XY Scatterplot:One Plot, Trendlines, Basic Arithmetic:Simple Formulas

The Manning Equation part of Spreadsheets Across the Curriculum:General Collection:Examples
Spreadsheets Across the Curriculum Module. Students build spreadsheets to estimate discharge for a culvert using the Manning equation, and to estimate culvert size, given a specified discharge.

Quantitative Concepts: Creating and manipulating tabular data, Measurement; Data presentation and analysis; Probability:Descriptive statistics; trend lines :Line- and curve-fitting, Measurement; Data presentation and analysis; Probability:Visual display of data :XY scatter plots, Calculus; Numerical methods:Iteration, Algebra; Modeling; Functions:Nonlinear functions of a single variable:Power function, Algebra; Modeling; Functions:Manipulating equations, Basic arithmetic; Number sense:Units and Dimensions:Dimensions, Geometry; Trigonometry :Circles (including radians and pi), Basic arithmetic; Number sense:Ratio and proportion; percentage; interpolation, Algebra; Modeling; Functions:Modeling:Inverse problem, Forward modeling, Basic arithmetic; Number sense:Rates
Subject: Natural science:Physics, Engineering, agriculture:Civil, environmental, hydraulic engineering
Excel Skills: Graphs and Charts:XY Scatterplot:One Plot, Basic Arithmetic:Nested Formulas, Graphs and Charts:XY Scatterplot:Trendlines