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Irrawaddy Dolphins Know Rates of Change

Irrawaddy Dolphins Know Rates of Change


Irrawaddy dolphins usually live in small groups of only 4-8 dolphins, but they sometimes live in larger groups. When they are in larger groups, they have to adapt to the change in social group size. To keep track of this, they have mastered rates of change. They may not have long, slim noses, but they know math!


Through in-class activities and independent practice, students will:

  • Determine the rate of change between two points using the Cartesian coordinate plane

  • Use one point on the Cartesian coordinate plane and a linear rate of change to locate the coordinates of another point on that line

  • Graph linear equations by finding multiple solutions to the equations and recording them in x-y tables

  • Use the graph of a linear relationship to write the equation of the line


          • Day and Time: Wednesdays, 11:30 AM - 12:30 PM ET
          • Class Duration: 4 Weeks
          • Dates: February 5 - 26, 2025
          • Recommended for: Ages 13+ / Grades 8-9
          • Teacher: TTK Faculty
          • Required Materials: 
            • DreamBox math app*



          *There is an additional $45 charge for DreamBox, which is a one-time purchase for the entire school year. Here at The Thinking Kid, we utilize the DreamBox Math App to enable our students to practice math skills outside of the classroom. DreamBox engages students through math games to test their proficiency in math concepts discussed in class. DreamBox access is essential to student success in our math program. If you have previously purchased DreamBox, please contact us at


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