Khan/khan-exercises — pull request #9998 by saeta (2012-01-01 23:45:12+00:00)
Title: Align vocabulary with high school geometry textbooks

We have changed some wording in `exercises/congruency_postulates.html` to better reflect wording and vocabulary seen in high school geometry textbooks. We hope this helps address issues similar to: where students don't look for a counter example in addition to the congruent triangle.

We have also increased the probability to encounter Standard Form equations in `exercises/graphing_linear_equations.html` from 20% to 30%. In using the practice problems, there have been times when no standard form equations came up. While y-intercept form is more common, it is important for students to be able to graph standard form equations.

Changes made by Brennan Saeta
On advice of: Linda Saeta ,

- International Baccalaureate Coordinator - Claremont High School
- IB Math Teacher (HL, SL)
- AP Statistics Teacher
- General Math Teacher
- Recently completed www.ai-class.org (CS 221, Advanced Track)
- National Board Certified Teacher - Mathematics (2000 - 2010)