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: 16 March 2008
- 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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