Google Wave & Math Facts

The plan for this summer is to continue developing MathFacts at ASchool.us. If you are a beta user you are welcome to join the Wave that I have started to facilitate development priorities and ideas. Visit the ASchool.us/math website to learn more about ASchool's MathFacts program. Once your account has been setup I'll send you an email with all of the details. At this point let me know if you are interested in participating in the wave.

iPod in the classroom a first look

https://vr.shapeservices.com/play.php?hash=356783718fa8326c179931ef9a049c8f9fba2ec19eb3243a2

Listen to the short audio clip to hear what programs I'm exlporing with my iPod.
Here is a list of programs that are potentially useful: PDFReader, GraphIt, RSS Player, Bible, Stars, Skype, VR+, iDoodleIt, Periodic Table.
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Sent via VR+

More Multiplication Math Resources

If you are looking of  a simple grid to help students learn their multiplication or addition tables check out this PDF file that I've created. Students fill in the answers for each of the squares. This worksheet would work well with Salman Khan's Multiplication 2: The Multiplication Tables tutorial shown below.

Addition and Multiplication Grid (download)
 

Math Facts Demo Version

I expect Math Facts to be ready to come out of beta version by the end of the summer 2010. If you are interested in signing up for beta account now which will get you a discounted price for as long as you keep your account. Now is the time to sign up!

Here is a demo of multiplication problems up to 6x6. The full version allows students to save their scores and keep track of which multiplication tables they have complete and how quickly they have completed them.

Graphing Inequalities With One Variable

It is easy to get confused when graphing equations with one variable. The first thing that you need to determine is if the question is asking for the equation to be graphed on a number line or in the coordinate plane. Lets take the example mentioned in a comment on the previous post How to Graphing Inequalities in the Coordinate Plane.

x > 6 and x > 2.

First we need to recognize the inequality that answers the problem. Any x value that will correctly solve x > 6 will also work for x > 2. This means that x > 6 is a subset of x > 2. Since this is an and problem that is a solution has to work for both inequalities to be part of the solution set. This makes x > 6 the answer since it everything that works for x > 6 will also work for x > 2.

With that said we now need to determine which type of graph we need to create, assuming that you have to graph your answer. Note that in the graphs below each grid line represents 2.

If you are asked to graph the inequality on a number line your answer would be the red line, the one on top, of the graph below. I've drawn both lines so that you can see everywhere the red line is the orange is also.
Remember to make your left end points empty since the inequality is greater than but not equal to.


If you are asked to graph the inequality in the coordinate plane your answer should look like the yellowish/greenish area on the right side of the yellow line in the graph below. Like the graph above everywhere the yellow area is the green area is also.
Remember to dash your lines since this a greater than but not equal to.

Now if the problem as or instead of and you would the green and orange lines would be your answer since your solutions in the solution set would only have to answer one of the equations. Everything that works in x > 6 also works for x > 2.

Flash Muliplication Resource: 4-digit by 1-digit

I'm working with my lower grade students to help them learn to multiply larger numbers than just the simple math facts. I wanted a way to help them get lots of practice without having to grade lots of problems and still help them get the immediate feedback on how they are doing.



If you are having problems with the applet above visit the original site: 4-digit by 1-digit multiplication practice at woehler.us.

Inkscape Clock

If you are ever wanting to use an analog clock image check out file available from TpT. It was made using Inkscape and saved as a scalable vector graphic file or svg and can be easily adjusted to say whatever time you want it to. I've used it to create worksheets helping my students learn how to read time on analog clock. The hands are setup so that all you have to do is rotate them, everything else is locked by default so you will not accidentally move it. You can change any of the items in clock to personalize it to meet your needs. The image at the right is an example of what it looks like. If you want to be very precise with your settings rotate the minute hand 6 degrees equals one minute and the rotating the hour hand 0.5 degrees for one minute.