From Pre-K through 6th Grade
Presenter: Fran Endicott Armstrong, Ph.D.
Address: Mathematics Department
St. Louis Community College/Meramec
11333 Big Bend Boulevard
St. Louis, MO 63122-5799
Contact: Phone: (314) 984-7769
FAX: (314) 984-7256
Developmentally appropriate, meaningful activities involving triangular numbers will be featured. You will learn what triangular numbers are and why they are called that and how you can provide opportunities for your students to make observations about the sequence of triangular numbers and generate a formula for the nth triangular number and how they might pop up in applications and problems.
Triangular Arrays with Pegboards or Cuisenaire Rods ®
Find the Sum of the First 100 Natural Numbers
Triangular Number Book
Making a Table of Triangular Numbers
Problems Involving Triangular Numbers
Applications Involving Triangular Numbers
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