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Black-Footed Ferrets Use Fact Trees

Black-Footed Ferrets Use Fact Trees


The black-footed ferret is the only ferret species native to North America, and it uses its long, slender shape to go through prairie dog burrows. In the prairie dog burrows, the ferret counts its food. Sometimes, this turns into a lot of counting, so it adds them quickly using fact trees.


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

  • Add or subtract two numbers by jumping to the nearest multiple of 10, then adding additional tens and leftovers (45 + 28 becomes 45 + 5 + 10 + 10 + 3)
  • Identify pairs of numbers that add up to 200 using multiples of 5 and 10


    • Day and Time: Tuesdays, 11:30 AM - 12:30 PM ET
    • Class Duration: 4 Weeks
    • Dates: March 4-25, 2025
    • Recommended for: Ages 6+ / Grades 2-3
    • Teacher: TTK Faculty
    • Required Materials: 


    *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. This is a one-time $45 purchase for the entire school year. If you have previously purchased DreamBox, please contact us at

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