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Debra P.'s Resources

When working with my math students, I find that they get intimidated very quickly by lots of words or lots of numbers.  Also if it has a radical, they shut down very quickly.  I try to help them by having them write down everything they already know about the problem.  When they realize how much information they already have, the problems don't seem as daunting to them. ... read more

Well, we know that the formula to find the surface area  of a rectangle is A = 2(wh + lw + lh). We plug in what we know.   SA (surface area) = 2948 in^2 l = 40 in w = 18 in h = ?   2948 = 2(18h + (40*18) +40h) (Multiply 40...

If you are doing this problem without a calculator, then you need to know that Π is rounded to 3.14 for practical purposes. The formula for the area of a circle (A) is A =Πr2. r = 6 ft   Π = 3.14, A = 3.14 x 62 A = 113.04 (which is an estimated answer because Π is estimated...

Sometimes it is easier to see it without so many words.  See if this helps some 250 = 250/1 So, your problem is 250/1 - 3/4. The common denominator for 1 and 4 is 4.  Therefore, you multiply: 250 x 4           1000 ¯¯¯¯‾‾ ...

I am thinking that this problem is stumping you because of the fraction 3/8.  It is a common problem for people.  Just remember that when you get the number with a variable alone on one side, all that you have to do is multiply both sides by the inverted number that is with the variable...

I would say that it is a rule for finding an unknown quantity as we use formulas to find answers.

One of the most common mistakes people make in math is not following the order of operations correctly. You can end up with several different answers if you don't do the operations in the order that is needed. Here is a great way to remember that order PEMDAS. If you can remember this, it will help you systematically solve order of operations problems. What does it mean? This tells you what... read more

I would recommend "The Hunger Games" to all people that are middle school age and up.  Although it is considered a futuristic sci-fi book, I believe that it is much closer to the present day than most want to believe.  We may not go about it the same way as in the book, but...