Solutions
KM#1: StreamFlow for the Animas River (Level 1)
Mathematical Content: Area, Volume, Unit Conversion
KM#2: Sunset Crater (Level 2)
Mathematical Content: Basic algebra; solving equations
KM#3: Snow Melt and Stream Flow for the Animas River(Level 2)
Mathematical Content: Area, Volume, Unit Conversion, linear equations.
KM#4: The Size of the Earth (Level 2)
Mathematical Content: Geometry (radius and circumference of a circle; volume of a sphere); interior angles.
KM #5: The Size of the Earth—Estimation in Arizona (Level 2)
Mathematical Content: Geometry (radius and circumference of a circle; volume of a sphere); interior angles.
KM#6: Location of the Epicenter of an Earthquake (Level 2)
Mathematical Content: Basic algebra; equation of a line; radius of a circle
KM#7: Impact Processes - Meteor Crater (Level 2)
Mathematical Content: Basic algebra, solving simple equations
KM#8: Age of the Earth (Level 2+)
Mathematical Content: Basic algebra; exponential equations; logarithms.
KM#9: Mass and Density of the Earth (Level 3)
Mathematical Content: Geometry (radius and circumference of a circle; volume of a sphere); interior angles; Newton's Law of gravitational attraction; formulas for density and force; solving equations involving kinetic energy, mass and volume
KM#10: Layers of the Earth (Level 3)
Mathematical Content: Basic algebra (distance, rate and time); geometry; Snell’s law
KM#11: Size, Mass and Density of the Earth (Level 3)
Mathematical Content: Geometry (radius and circumference of a circle; volume of a sphere); interior angles; Newton's Law of gravitational attraction; formulas for density and force; solving equations
KM#12: Age of the Earth (Level 4)
Mathematical Content: Basic algebra; exponential equations; logarithms; linear regression.
KM#13: Impact Processes: Meteor Crater (Level 4)
Mathematical Content: Algebra, power and linear equations, linear regression, solving equations involving kinetic energy, mass and volume.