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## Mathematics and Technology

### Chalkboard vs. Whiteboard

Some educators question the huge expense of an interactive whiteboard (IWB). The most popular brand runs about \$5,000. I can't tell you how I wish I had one of these when I first started teaching! I worked in a few schools where the chalkboards were completely destroyed. Funds for technology are not always available. The good news is, some new projectors have been released on the market that let any wall or surface become an interactive whiteboard. The price is about \$2,000, and this might just change the IWB market. For more information, follow the links below.

### Technology in the Math Classroom

I have always been fascinated with bringing technology into the math classroom. There are two ways to do this: You can integrate math and technology, making these topics the object of instruction, or you can use technology to facilitate math learning.

#### Math and technology as the object of instruction

Symbolic logic provides an excellent framework for computer circuitry. When I taught an electronics class at a NY City high school in 1990, I presented lessons on Boolean logic and circuitry. Specifically, I gave a lesson on gates such as AND, OR, NAND, and XOR. View my Lessons on Symbolic Logic.

Round-Off Error is a good topic to present to students who are learning about repeating decimals. I have students bring in their own calculators so they can see different levels of accuracy for the same repeating decimal. View my article on this topic here.

The theme for MAM 2006 was Mathematics and Internet Security. Math plays a central role in Internet technology, including encryption, making it possible for you to bank, shop and communicate online securely! Learn more.

#### Using technology to facilitate math learning

Handheld devices make great tools for using technology to facilitate math learning. This is especially prominent in the field of applied mathematics. Here are some examples of using the iPod to facilitate math learning from Apple.

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