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## Masters of Education Graduate with Mathematics Expertise

### Brookline, MA (02446)

Travel radius 20 miles
Hourly fee \$40.00
Save up to 15%
 Background check passed as of 2/5/13 You don't pay for tutoring unless you find a good fit! You don't pay for tutoring unless you find a good fit!

## Roman's Resources

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# What's the difference between speed and velocity? (answer)

Speed is a scalar quantity. Ex: I am driving at 30 mph. Velocity is a vector quantity. Ex: I am driving at 30 mph due East.

# How would you find the square root of 48 over 75? (answer)

Even easier: Reduce the fraction 48/75 to lowers terms first to get 16/25 which is just 42/52. Then take the the square root to get 4/5.

# 1s2 2S2 SP5 (answer)

Here I assume you have only the basic periodic table which doesn't mention electron configurations. 1s2 2s2 2p5 This reads that there are 2 electrons in the 1s subshell, 2 electrons in the 2s subshell, and 5 electrons in the 2p subshell. This is a total of 2+2+5 = 9 electrons. So for a neutral...

# Video

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# Solving Cubic Polynomials - Part 2

This is a lesson on solving general cubic polynomials by radicals. In this part, I discuss solving non-factorable cubics using Cardano's method. I finish up by briefly discussing a special situation called "Casus Irreducibilis".

# Solving Cubic Polynomials - Part 1

This is a lesson on solving general cubic polynomials by radicals. In this part, I discuss solving factorable cubics. I end the discussion by looking at the cube-roots of unity.

# Blog

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## Calculators in School.

One of the major problems in the mathematics curriculum in the US lately, is the fact that students get introduced to calculators too early and are often overexposed to them. In Russia, and other countries that were part of the former USSR, students are only introduced to calculators in their late elementary education. Also, even after that, students are expected to use the paper-pencil algorithms... read more

## Math Tools for Students

Here is a website with helpful math applets that I recommended to students before: http://www.ies.co.jp/math/java/ Also, for exploring geometry, I recommend a program called GeoGebra. I'm sure that many of you are familiar with it. You can download it at http://www.geogebra.org/cms/. Feel free to leave comments on what you think.

### Roman's Hourly Rate

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### Background Check Status for Roman C.

Roman C. passed a background check on 2/5/13. The check was ordered by Roman through First Advantage. For more information, please review the background check information page.

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