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Activity I: Constant or Linear Plant Growth (Grade Levels: 3-6)

Concepts Home | Constant or Linear Plant Growth | Continuously Changing Growth | Surface Area of a Leaf | Career Connections | More Math Concepts

Objectives:

  • Complete a table of values.
  • Graph the values given in a table.

Standards

  • Standard 1 Problem Solving
  • Standard 2 Communication
  • Standard 3 Reasoning
  • Standard 4 Connections
  • Standard 5 Number and Number Relationships
  • Standard 8 Patterns and Functions
  • Standard 9 Algebra

adobe acrobat Student Activity (PDF File)
Answers (PDF File)

Constant or Linear Growth

1. Letís simulate an imaginary plantís growth. Assume that this plant grows at a constant rate. The length of the stem increases by 11 millimeters each day.

a.Make a table of the plantís height over a 10-day period.
b.Make a graph of the plant growth over time in days.
c.Predict the plantís growth over a 100 day period.
2. Consider another plant that has a height of 30 millimeters when it is first measured and suppose it grows continuously at a rate of 8 millimeters per day.
a.Make a table of the plantís height over a 10-day period.
b.Make a graph of the plant heights.
c.Predict the plantís height on the 100th day after it was first measured.
d.Do you feel that the plant growth in these two problems is realistic? Explain.