Reviewed and Approved

Hailey’s Treehouse: Similar Triangles & Slope

Resource ID#: 187908

Primary Type: Student Tutorial

This document was generated on CPALMS -

Learn how similar right triangles can show how the slope is the same between any two distinct points on a non-vertical line as you help Hailey build stairs to her tree house in this interactive tutorial.


Accessible Version: Accessible version of tutorial content in PDFformat.

General Information

Subject(s): Mathematics
Grade Level(s): 8
Intended Audience: Students
Keywords: similar triangles, slope, constant of proportionality, stairs, AA Similarity Theorem, SAS Similarity Theorem, similar, similarity, right angles, right triangles, hypotenuse, leg, legs, proportional, treehouse, stairs, steps, triangles, theorems, mathematics, interactive, tutorials, elearning, e-learning, building
Instructional Component Type(s): Original Student Tutorial
Resource Collection: Original Student Tutorials Mathematics - Grades 6-8

Aligned Standards

Name Description
MAFS.8.EE.2.6: Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.