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When my 2nd grader needs to know the meaning of a word, I tell him to use my iPhone to ask Siri, an artificial intelligence program that's always happy to look it up for him. Siri, in turn, uses the free online program Wolfram Alpha, one of the most powerful data analysis tools in the world. If you enter into the Siri (or Wolfram Alpha) search box, by text or voice, "arable land in world divided by world population," in less than a second the phone or computer will find the relevant data; do the calculations; provide the answer—in square miles, acres, square feet, and hectares per person—and cite you its sources.

With YouTube, for example, students can post their ideas to the world and get rapid global feedback. With tools like Twitter and its cousins, they can follow firsthand details of events unfolding anywhere in the world, from revolutions to natural disasters. With mashups and related techniques, they can combine sophisticated data sources in powerful new ways. One school group I know of created a Second Life model of Los Angeles, using the database of the Federal Aviation Administration (FAA) to show each plane flying in its actual spot! With Skype-like tools, students can connect with experts and peers around the world in real time.

call the process of envisioning such technically enhanced possibilities imag-u-cation. It's something every teacher and class should spend some time doing.

The technologies we block in their classrooms flourish in their bedrooms. Students are growing networks without us, writing Harry Potter narratives together at FanFiction.net, or trading skateboarding videos on YouTube. At school, we disconnect them not only from the technology but also from their passion and those who share it.

2. Students could use their smart phones’ cameras to map their own neighborhoods, documenting (for example) the number of trash cans on street corners. That information could be plotted and shared city-wide, and the data could be examined for patterns and anomalies. Are there more trash cans in wealthy areas? If so, ask the mayor, the Department of Sanitation and the City Council for an explanation. Again, students will be turning information into knowledge. I wrote about this a while ago in more detail.

3. Why not measure water quality? A hand-held monitor/tester of Ph costs under $100, and the instrument that tests conductivity (ion levels, which relates to purity) is available for under $100. Turbidity — how cloudy the water is — is important to measure as well, and that can be done with an inexpensive instrument and a formula. Students could also measure the speed of the current and keep track of detritus. Then share all the data with other science classes around the city, region and state. Everyone could dig into the information looking for patterns. If one river’s water seems relatively pure until it passes point X, students could endeavor to find out why.

Work like this is, well, real work. Students are creating knowledge; they are designing projects and seeing them through from beginning to end. These projects have to meet real-world standards because the results are in public view.

In a growing number of simulations, ranging from the off-the-shelf SimCity and to Muzzy Lane's Making History to MIT's experimental Revolution and Supercharged, students -- even elementary school children -- can now manipulate whole virtual systems, from cities to countries to refineries, rather than just handling manipulatives.

In Education Simulations's Real Lives, children take on the persona of a peasant farmer in Bangladesh, a Brazilian factory worker, a police officer in Nigeria, a Polish computer operator, or a lawyer in the United States, among others, experiencing those lives based on real-world statistical data. Riverdeep's School Tycoon enables kids to build a school to their liking.

The missing technological element is true one-to-one computing, in which each student has a device he or she can work on, keep, customize, and take home. For true technological advance to occur, the computers must be personal to each learner. When used properly and well for education, these computers become extensions of the students' personal self and brain.

In particular, it must support four key components of learning: active engagement, participation in groups, frequent interaction and feedback, and connection to real-world experts

The Web connects students to experts in the real world and provides numerous opportunities for expressing understanding through images, sound, and text.

When technology is effectively integrated into subject areas, teachers grow into roles of adviser, content expert, and coach.

Students should sign a release for BYOD that includes what will happen in cases of theft and damaged technology Schools should have half-sets or quarter-sets of devices so that they can go one-to-one. A few school-wide behavior guidelines make sense: Devices away when the teacher is talking (unless instructed to do so) During individual assignments, students can use devices and have their headphones on Students need to use the devices for the purpose of learning and a teacher can require a student to put it away if it becomes a distraction Teachers can attend optional training on apps, classroom management and how to integrate the tools into the curriculum. One group had the idea of letting teachers watch a BYOD class in action, or even having a “test class” that tries it out for a quarter before going school-wide.

Anytime a teacher wants to use Twitter, Voicethread, whatever the tool, bring them in (if you can), record a video, communicate somehow, the answers to these 3 questions: What are you using? Again, it sounds simple but you've got to communicate what tool you are using. How it works. Are the parents going to have access to the student work? What will they be able to see? This is all the technical stuff. The depth to which you go is up to you. If you can bring them, take the time to teach them how to use the program. Why are you using it? You've got to communicate to the parents the purpose of the use of the tool. How does it fit with the content? Explaining why you are going to use it will help you determine for yourself, the best pedagogy for the technology and how it will fit into your teaching. That, in turn, helps the parents to understand the same. How does the use of this tool enhance student learning? The most important question to answer. How will the use of this ultimately make learning better. Why will the use of this tool be good for kids? You've got to build those bridges with parents. The easiest way is to bring them in and tell them whats going on. Better yet, let the kids teach their parents.