How to add a ‘Follow me on Twitter’ button on your blog

Twitter is one of the most popular microblogging site and an excellent place for sharing finds on the internet. That is why it is highly recommended for promoting blogs.

In this post, I am going to teach you how to use Twitter to promote your blog. One way to do this is by adding a Follow Me on Twitter button in a prominent place on your blog.  You should place the Twitter  button on your side bar or up top. This way, your readers can always see it regardless of the page he reads.  Of course, before you do this, you must have a Twitter account. » Read more

GeoGebra 4.0 Sneak Peek 3: The New Text Tool

This is the third part of the GeoGebra 4.0 Sneak Peek Series. The first two posts discussed about the new tools and the graphical interface. In this post, we are going to discuss the changes made on the GeoGebra Text tool.

The Text tool was hard to use in GeoGebra 3.2. When you want to combine dynamic and static texts, you have to type confusing codes which include symbols such as the plus sign and double quotes.

GeoGebra 4.0, however, has a much improved Text tool.  In the new version, the name of each object can bee seen in the Objects drop down list (see Figure 1) on the Text tool dialog box. The values of these objects can be inserted  in a phrase/sentence by clicking them  on the list. After selecting a particular object, it’s name will be shown  in the Edit window (see Figure 2), while its value will be shown in the Preview window.  This saves us from writing variables, double quotations, and plus signs manually.

GeoGebra Sneak Peek 3: The New Text Tool

Figure 1 - The Objects drop down list box

The big problem of the Object list, however, is when you have constructed a lot objects.  This will give you a very long list, and you will have to do a lot of scrolling down to look for a particular object.  I hope that this could also be improved later, in GeoGebra 5.0 perhaps, if it is not possible in the next version. » Read more

Some thoughts on using Wolfram Alpha in teaching math

My main work at our institute is to find ways on how to integrate technologyparticularly free software and Web 2.0 applications in teaching mathematics. Recently, I have been thinking of integrating Wolfram Alpha in teacher trainings, but I can’t yet  justify to myself why (I don’t want to read the work of others yet).

Don’t get me wrong. Wolfram Alpha is a great tool — the first of its kind. You type your query and voila, all the related information pop up — graphs, numbers, tables, maps,  and almost all the things that you need. Fantastic, but if a lesson ends in generating information from Wolfram Alpha, then it’s no different from using Google or Wikipedia — well a little different probably because of the presentation.  I don’t want to let students use Wolfram Alpha just to get information; I want it to be a tool that would elicit thinking. » Read more

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