Selasa, 30 Agustus 2011

CapJaxMathFax and UberSmart Math Facts programs

I had the chance to look into two math facts practice programs, titled CapJaxMathFax and UberSmart Math Facts. Both programs drill math facts and keep track of your progress.


My testing "girl" liked them both just fine. Her focus definitely was on getting the percentages on the progress chart to go up (in both programs)!

CapJaxMathFax


Here's a screen of CapJaxMathFax showing a math problem to solve. It alternates the dot and cross symbols for multiplication. It also alternates showing the problems vertically or horizontally. The vertical line is my cursor blinking in the empty space.



If you answer correctly and in less than 3 seconds, it shows you the word "SUPER". Then you get the next fact by pressing "ENTER."

Personally I would have liked a little clearer workspace, but all these colors, buttons, text, etc. on the screen seemingly didn't bother my daughter.






Here is where you select what operation you want to practice, how long, etc. The "word problems" aren't really word problems, but just math facts with words instead of with symbols.




In CapJaxMathFax, you can either practice, or build your ratings. Ratings can be built when you can get "SUPER" answers—those where you answer in 3 seconds or less.

You start off with ratings of 0 in each math type. Your ratings climb as you work through each building level in the math skill types (+, -, x, ÷).

Here are my ratings after playing for a little while:





And this is the general progress chart:




The software has a free evaluation version that you can download here. Website: www.CapJax.com. The price for the software is $59.96.


UberSmart Math Facts


UberSmart Math Facts had a cleaner interface that I liked better, but it has less options. The math facts were shown as flash cards. You get a progress chart, but there aren't any "ratings" as in CapJaxMathFax.

There are three ways to practice. The first one is to View Flash Cards. The second one is to View Flash Cards and check the Beat the Clock checkbox. The third one is to take a Test. The first, "View Flash Cards" option, simply shows you the flash card and you just think the answer in your mind, and you can have the program show you the answer.

"Beat the Clock" is the main way to practice (this won't affect your progress chart). When you check this box, the flash cards become interactive and you must enter an answer before the computer answers it for you. If you enter the wrong answer, or the computer answers before you do, the correct answer is shown and that fact is moved to the end of the set, so you need to answer it again. The facts you didn't get are repeated in the set until you get them correct.



Once you think you're ready, you can take a "test". The results from tests will be shown in your progress chart. This is how you set up the practicing using the "test" option:



Here, I would like to see an option to select several tables for a test, such as 4s, 8s, and 9s. Currently it has an option for choosing one table at a time, or all of them.

This is how the flashcards look like in the test.



If you miss some facts in a test, the program will tell you what you missed after the test, and show you the correct answers.

After missing or answering slowly some facts in a particular test, such as in the 4s for multiplication, if you go to the "View Flash Cards" for that same kind of practice, you have the option of doing a "focused" viewing of flash cards. This makes the program only show you flash cards of the problems you missed or were slow in answering in the "test".

And lastly, here's the progress chart. Your goal is to get to 100%, and if you are not only 100% correct but also fast enough, it shows a neat star in the chart!

My "guinea pig" daughter was plenty motivated by trying to get the progress chart go up to 100%! (And that's how it should be, by the way... that the student would be internally motivated to learn something for the learning's sake.)






You can download a free 30-day trial of UberSmart Math Facts here.

The main website is Mathfacts.ubersmartsoftware.com/mathfacts.php. The software costs $24.95.




The main feature I'd like to see in these two programs is being more adaptive so that the program would drill those facts much more (not just one extra time) that the child has trouble with. I've seen how Math Rider does that (which I have also reviewed).


I would definitely recommend using something computerized to help children master their math facts. My children have enjoyed trying out many different programs and systems, and I feel it has been quite helpful. BUT not at first--only AFTER they have understood the concepts and the patterns in them!

I also recommend you use the free trials to check and see what program  your child likes best.

Jumat, 26 Agustus 2011

My new percent lessons

Need help with teaching percent-related topics? Or need help studying them? Check out these new lessons of mine -- with videos!
Click on the links to read the lessons. You can watch the videos here or on the lesson pages.

1. Percent - the concept and how to change fractions to percents.


2. Percentage of a number using mental math
    For example, how to find 70% of 5,000 or similar problems.



3. Percentage of a number using decimals
    The same as above, but this time we use a calculator & decimals,
    not mental math.





4. "What percentage..." / "How many percent...?"
  How to solve word problems that ask for the percentage.



Kamis, 25 Agustus 2011

Hating math?

About this thing where people say, "I hate math", or "I'm not good at math", or "I never understood math", or similar things. It's well-known that in the U.S. at least, people seem to be able to say such things with ease -- it is totally acceptable socially -- but no one readily admits similar things about their reading abilities!

I just read two interesting posts by Bon from Math is Not a Four-Letter Word that deal with this topic... They can HELP you or others you know overcome this line of thinking.

How to Get People to Stop Saying "I Hate Math"

How to Quit Saying "I Hate Math"

You might also be interested in an old blogpost of mine: Developing a Positive Attitude (towards math).

Jumat, 19 Agustus 2011

Solar panels in a TREE model & Fibonacci numbers

Did you know tree branches and leaves in a plant rotate around the trunk in a pattern based on Fibonacci numbers? That maximises the amount of sunlight that the leaves get, because it minimizes how much the upper level branches or leaves shade the lower ones.

Well, a 13-year old student has now built a "tree model" with solar panels and proven that it collects MORE sunlight than a flat array of solar panels! The article has lots of photos to show his experiments.






Kamis, 11 Agustus 2011

Giveaway of 3 copies of Math Dictionary for Kids

PRUFROCK PRESS INC. is graciously donating THREE copies of their
Math Dictionary for Kids: (Grades 4-9) to be given away to my blog readers! (Only U.S. and Canada addresses, please.)

This dictionary has been recently updated and is now in full color!

Go check how it looks like inside At Amazon:



If you want to take part in the giveaway, leave a comment here, AND email me so I'll have your email address to contact you if you win.

I will run this until  August 21 OR until I get 100 entries, whichever happens first. And it's only for U.S. and Canada addresses.

COMMENTS ARE CLOSED NOW... I GOT MORE THAN 100 in record time.
The WINNERS are RJC, Sheri R, and mommygirl @ HCA. THANKS EVERYONE!


AND, not only that, but Denise also has a math book giveaway at her blog... hers are for TWO books: Keith Devlin’s new e-book, Leonardo and Steve: The Young Genius Who Beat Apple to Market by 800 Years, and his latest print book, The Man of Numbers: Fibonacci’s Arithmetic Revolution. She said the number of entries was LOW, thus far. Go take part!



Selasa, 02 Agustus 2011

Math Mammoth sales in August 2011

  1. Homeschool Buyers Co-op group buy is live at
    www.homeschoolbuyersco-op.org/math-mammoth

    You can get Math Mammoth bundles for up to 50% off! (The discount level depends on the number of purchasers.) This is the best deal on the planet!


  2. Currclick will have an August sale on lots of stuff starting TOMORROW AUGUST 3, including Math Mammoth books (but not bundles... they don't have a way to automatically include bundles in their sales). Math Mammoth 25% OFF! The sale runs till August 24.
    http://www.currclick.com/index.php?filters=0_0&manufacturers_id=108


  3. Concurrently I'll run the same sale at Kagi--25% off of all my books, including the CDs and bundles. Use coupon code AUGUSTSALE at Kagi checkout. Starts NOW (August 2) and runs till August 24.

    Go to www.mathmammoth.com first, then find the links to Kagi's order pages. Or use these direct links:

Senin, 01 Agustus 2011

My first piano lessons are ready

Finally... after many delays, I've gotten the first batch of beginner piano lessons uploaded. They're especially geared to children, or parents/adults who want to teach children. You don't need any prior knowledge of piano, if you start at the beginning and go through the lessons in order. You as a parent can learn alongside your child!

Piano lessons for children - lesson index page

Here's one of the lessons (Mary Had a Little Lamb, part 1). It's not the first lesson - it is assumed you know the names of the white keys)