Browse - Specific Math Concepts/Techniques

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1. Subtraction with regrouping
Suggestions for alternate subtraction algorithms.
- Date of thread's last activity: 28 February 2008

2. 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

3. Approximations of pi
Deciding which approximation of pi to use in various situations.
- Date of thread's last activity: 13 March 2015

4. Combinations
How to help students understand a combinations problem regarding forming committees.
- Date of thread's last activity: 17 November 2010

5. Cylinders
Helping students design a cylinder with the optimal volume and minimal surface area.
- Date of thread's last activity: 29 February 2008

6. 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

7. Polyhedra and Euler's formula
Teaching properties of polyhedra to elementary children.
- Date of thread's last activity: 13 April 2008

8. Multiplying fractions
Helping students understand the algorithm for multiplying fractions.
- Date of thread's last activity: 3 April 2008

9. 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

10. Graphing lines (slope/intercept)
Helping students understand and graph linear equations.
- Date of thread's last activity: 27 June 2008

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