# Maria's Math News, Vol. 58, December 2011

I love teaching, and I love math. This newsletter is my way of reaching out and helping you to teach it, too.

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Greetings! This time the newsletter is filled with Math Mammoth related news, plus my new videos.

~Maria

1. Math Mammoth news
2. Lots more videos: fractions, geometry, percent
3. A teacher's experience with Math Mammoth Geometry 1
4. Tidbits

## 1. Math Mammoth news

First of all, my Thanksgiving sale is still going on, till December 5th! Get 25% off of all downloads & CDs, bought at Kagi store. Use coupon code THANKSGIVING. Simply go to MathMammoth.com first and follow the links to the order pages at Kagi.

Currclick is also running a sale, "Stocking up your shelves" it is called. Again, you get 25% off of the individual Math Mammoth titles.

Then, the members of TOS Homeschool Crew have recently finished writing a bunch of new reviews about Math Mammoth. There are nearly 100 reviews in total, which you can access here.

Here are some reviews I chose to highlight:
TOS Review: Math Mammoth from Miscellaneous Musings
"My daughter took a break from her other math curriculum and began focusing just on fractions with the Math Mammoth blue series which includes explanations. About three weeks later she was able to test out of an entire text on fractions."

TOS Review Math Mammoth from Circling Through This Life. This review contains the cutest picture of a stuffed mammoth standing next to this girl's math work!
"She really enjoys it. She calls it her "Elephant Math" and insists that Manny, her woolly mammoth do math with her."

Review: Math Mammoth from Footprints in the Butter
"And I started this school year completely stressed about what to do with math. So finding out I'd be reviewing Math Mammoth again this year was a gift from God."

Math Mammoth -- A TOS Crew Review from Mountaineer Country
"Do you know what my daughter said to me? She said, rather mattor-of-factly, "Why haven't we been doing this all along? I love this math."

Math Mammoth~ TOS Review from Adventures in Unsell Land!
"We have used quite a few various math programs through the years between our 6 children and I have never seen one that is as strong on the mental math as Math Mammoth is. It's my favorite aspect of this program."

Math, it's a Mammoth responsibility from A Teaching Heart
"It is suggested that you introduce multiplication before division, but other than that, you can proceed through the lessons as you wish. I find that mixing up the learning of multiplication with other math concepts gives Hunter's brain a chance to process and retain facts. So we will be jumping around the books all year."

Lastly, I've given the home page at MathMammoth.com a "lift" (new design)... go check it out, and see if you like it!

## 2. Lots more videos: fractions, geometry, percent

I have started making videos galore, and some "early fruits" of my work are now posted on my site, as handy pages filled with videos:

• Percent videos - these videos match many of the lessons in my book Math Mammoth Percent (Blue Series book), or the lessons in chapter 9 of Grade 5-B (Light Blue series), or chapter 6 in Grade 6-B (Light Blue series).

Find videos about concept of percent, using decimals in percent problems, mental math & percent, sales tax, discounts, percent of changes, and percent of comparison.

• Fraction videos, part 1 - these videos match many of the lessons in my book Math Mammoth Fractions 1(Blue Series book), or the lessons in chapter 5 of Grade 5-B (Light Blue series).

Mixed numbers to fractions and vv., adding & subtracting like fractions, adding & subtracting mixed numbers, equivalent fractions, adding & subtracting unlike fractions, comparing fractions.

• Geometry videos, part 1 - the first videos on this page match many of the lessons in my book Math Mammoth Geometry 1 (Blue Series book), or the lessons in chapter 6 of Grade 4-B (Light Blue series).

Drawing a right angle/rectangle, perimeter, area, area versus perimeter, using a protractor, and more.

## 3. A teacher's experience with Math Mammoth Geometry 1

I intend to publish several of these "stories" or "reports" from teachers who have been using Math Mammoth. Here's the first one, from Megan in Belgium. She used some lessons from my Math Mammoth Geometry 1 book.

Presentation of the Class and the School
I am a 1st, 5th and 6th grade teacher in south Belgium. My school is what we call an "immersive school". The students are taught in French, their mother tongue, 14 periods a week. During the other 10 periods each week, class is given in English—the students are "immersed" in the language from the age of 5 and learn to speak this language in a very natural manner.

Because of these awkward hours, we teachers "share" the classes. In order to have a full schedule, I give class in English 10 hours a week in 5th grade, 10 hours a week in 6th grade and 4 hours a week in 1st grade. We also split the subjects between French and English—and Geometry is one of the subjects seen in English.

Now, the immersive program is not without its downfalls, one of which being that we must consecrate two times as many periods per week on Language Arts, as we have both the French and the English language to teach. As a result, we have less time to teach everything else.

I am also a first-year teacher, thrown into this system with no life-lines to cling to! I was searching desperately for a guide, something to help me, but also for something that would help my students understand this subject that is such a part of our everyday lives, yet seemingly so abstract. When I saw Maria Miller's offer—one "free" e-book in exchange for a report of my experiences—I couldn't turn it up! So, without further ado, here is what I have to say about Math Mammoth.

Session 1
I started the year teaching lines and angles to both the 5th and 6th graders. Most of the 5th graders did poorly on the test and some of the 6th graders needed a refresher course.

## 4. Tidbits

• Winning the lottery with math?
An article that might interest some of you... it talks about 15 mathematicians who used their knowledge of mathematics and statistics to be able to win in lotteries, blackjack, roulette, and other games that should be based on pure chance.

Some did nothing illegal and simply used their knowledge to their own advantage, others used their math skills to cheat and lie their way into millions, and some figured out a system just for the fun of it.

• A free math assessment test
LexxLearn is a new company and is offering a free math assessment test online. It's currently based on Massachusetts standards but is surely useful if you need to benchmark your student, wherever you live.