ActivePaperMath

This "Gold" version assigns each student one of over 200 different data sets. I find this encourages helping but makes it impossible to share answers.This geometry challenge poses three levels of problems. I typically assign the first level to all students with the other two as a challenge. The problem involves a board that becomes jammed in a box. The students enter their answers into the spreadsheet and the cell will turn green if correct. Level 1 (box width) is solved using similar triangles

This geometry challenge poses three levels of problems. I typically assign the first level to all students with the other two as a challenge. The problem involves a board that becomes jammed in a box. The students enter their answers into the spreadsheet and the cell will turn green if correct. Level 1 (box width) is solved using similar triangles and the Pythagorean Theorem. It should be accessible to most students. Level 2 (jam height) starts out the same but leads into some fairly intense app