221 threads found:
- Algebra and the # symbol
Using # to express a function. How do you solve it?: If a#b = 3a + 2b, find 5#6. - Date of thread's last activity: 4 March 2008 - Dividing fractions
Sometimes it seems like you can divide across instead of inverting and multiplying. Why? - Date of thread's last activity: 7 June 2012 - Which algorithms should we still teach in high school?
With technology available in classrooms, should we be teaching the square root algorithm? Cramer's rule? Descartes rule of signs? - Date of thread's last activity: 10 November 2006 - The geometry of the complex roots of graphs
Interesting way of looking at the geometry of the complex roots of graphs - Date of thread's last activity: 13 September 2012 - Graphing: discrete vs continuous data
How do you know when to "connect the dots" on a graph and when not to? - Date of thread's last activity: 24 September 2010 - Conceptual vs procedural knowledge
Understanding the relationship between conceptual and procedural knowledge - Date of thread's last activity: 3 September 2006 - Determinant used to find the area of a triangle given the three vertices
Finding the area of a triangle using determinants - Date of thread's last activity: 7 December 2006 - Mental arithmetic problem for teacher
Improving mental math abilities at any age - Date of thread's last activity: 29 September 2006 - Solving algebraic equations
Teaching students to solve equations with a single variable - Date of thread's last activity: 11 June 2014 - Integers
Adding and subtracting negative integers - Date of thread's last activity: 23 March 2007
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