Activities (for students)
Activities for Students: Moving a Wall: Using Geometry to Measure an Imperceptible Distance
Adam Poetzel, Matthew Hopkins, Joseph Muskin
February 2010, Volume 103, Issue 6, Page 446
Students conduct a mathematical experiment to determine how far they can move a solid wall when they push against it. Intended for use in any geometry or trigonometry classroom, this lesson capitalizes on students’ prior knowledge of basic circle properties, right-triangle trigonometry, and unit conversions.
Problem Solving / Problem Posing
Ratios / Proportions