When you tutor social studies or geography, you’ll likely have to explain the concepts of longitude and latitude. Now, we will. The other day a kid came to me, embroiled in a conflict. One adult had told him lines of longitude lie north …
When you tutor math, decimal coefficients surface sometimes – especially in word problems. We’ll sort out a simple scenario. Recently, someone asked me a question very similar to 206.5(0.7x) + 112x = 4000.5 Here’s what to do: 1) multiply the 206.5 by …
Algebra: solving equations with decimal coefficients Read more »
Whether tutoring French or learning it, these verb conjugations are critically important. The French verb to be is être. Its present tense conjugation is as follows: je suis (I am) nous sommes (we are) tu es (you [singular] are) vous êtes …
Tutoring chemistry, ionic compounds with the transition metals often need extra attention because of the Roman Numerals. You can read my previous posts (Oct 20 and Oct 25) about writing ionic formulas. Assuming you’re up to speed, we’ll discuss how …
Chemistry: Ionic Compounds with the Transition Metals Read more »
When you tutor biology or any science, often the basic concept is better without all the extra details thrown in. The renal artery brings blood to the kidneys to be filtered. Upon reaching a kidney, the renal artery branches into thousands of arterioles, …
Tutoring high school chemistry, ionic compounds are fundamental. We’ll discuss how to write their formulas when radicals and involved. In my Oct 20 post about the periodic table and ionic compounds, I mentioned the issue of metal vs nonmetal. As I described …
Continuing our discussion about the prime factorization, we focus on using it to reduce fractions containing large numbers. In high school math, this application – happily – has resurfaced. You can read about prime factorization in my Oct 14 post. Let’s …
When you tutor high school chemistry, these basics come up every year. Let’s sort them out. From the high school chemistry point of view, there are two types compounds: ionic and covalent. Ionic names start with a metal; covalent names contain only nonmetals. What …
Chemistry: the Periodic Table and Ionic Compounds Read more »
We continue our exploration of prime factorization. Any high school math tutor deals with the subject a few times a year. Continuing from our previous post, let’s investigate one use of the prime factorization: finding the least common multiple (LCM) of two (or more) numbers. You can …
Uses of Prime Factorization: Finding Least Common Multiple Read more »
In math tutoring, prime numbers and prime factorization are receiving fresh attention. We’ll briefly look at the concepts. Before we talk about prime numbers, let’s define factor. In math, a factor is a number that divides into another number with …