Measurements and geometry

• 3-D Topographic Maps -- get a bird's-eye view
• Feeding Time -- measuring food by weight or volume
• Trout Length -- different strategies for measuring
• Thermometers -- how to know the temperature
• Water Quality Graph -- plotted by time or population
• Population Graph -- tracking eggs and fry
• Trout Growth -- track their size
• Volume measurements -- calculation vs. water displacement
• Tank Size -- cubic centimeters vs. gallons
• Stream flow -- velocity and volume

Percentages and algebra

• Water Quality Graph -- plotted by time or population
• Population Graph -- tracking eggs and fry
• Trout Growth -- track their size

Charting

• Water Quality Graph -- plotted by time or population
• Population Graph -- tracking eggs and fry
• Trout Growth -- track their size