221 threads found:
- Subtraction with regrouping
Suggestions for alternate subtraction algorithms. - Date of thread's last activity: 28 February 2008 - Sales Tax Computation (Backwards)
How to calculate a base price if the sales tax rate and total cost are given. - Date of thread's last activity: 7 May 2008 - Approximations of pi
Deciding which approximation of pi to use in various situations. - Date of thread's last activity: 13 March 2015 - Combinations
How to help students understand a combinations problem regarding forming committees. - Date of thread's last activity: 17 November 2010 - Cylinders
Helping students design a cylinder with the optimal volume and minimal surface area. - Date of thread's last activity: 29 February 2008 - Patterns in multiplying by 0 and 1
Helping elementary students understand the effect of multiplying by 0 and 1 (the Zero Property and Identity Element of Multiplication). - Date of thread's last activity: 22 May 2008 - Polyhedra and Euler's formula
Teaching properties of polyhedra to elementary children. - Date of thread's last activity: 13 April 2008 - Multiplying fractions
Helping students understand the algorithm for multiplying fractions. - Date of thread's last activity: 3 April 2008 - Parallel lines
Helping students to understand more about parallel lines by visualizing planes that cut through 3-dimensional figures. - Date of thread's last activity: 2 April 2008 - Graphing lines (slope/intercept)
Helping students understand and graph linear equations. - Date of thread's last activity: 27 June 2008
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