12 Ways To Be More Search Savvy. Digital Tools Teaching Strategies Getty You don Google has made it possible for us to have instant information gratification.
Just start typing the first letters of your search word and the site intuits your question and offers you the smartest choice of answers. Seems simple enough. CONTROL F. To those who wonder if Google is making us stupid, Russell has a pithy response: “Plato said that about books.” I better go search that. Related Explore: Google, search. 5 Free and Simple Timers for Teachers. In the school at which I teach we have eighty minute class periods.
Eighty minutes is a long time for anyone, let alone teenagers, to stay in one room and on task. Therefore, I break up the time with varied activities and "break times" during the eighty minutes. One tool that can help to get the students and me to not stretch the "break times" is to use a countdown timer. Online Stopwatch is a free website that gives you the choice of a stopwatch function or a countdown function. You can set the countdown timer for any length of time and an alarm sounds when time is up. Online Egg Timer is a simple website offering three countdown timers on one screen. Timer Tab is a free application offered through the Chrome Web Store and as a stand-alone website at timer-tab.com.
Timerrr.com offers two versions of their free countdown service. - Simple Harmonic (and non-harmonic) Motion § Harvard Natural Sciences Lecture Demonstrations. [S | t | ★★★★] keywords: simple harmonic motion, periodic motion, quantum revival, aliasing What it shows: Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and random motion.
One might call this kinetic art and the choreography of the dance of the pendulums is stunning! Aliasing and quantum revival can also be shown. How it works: The period of one complete cycle of the dance is 60 seconds. The length of the longest pendulum has been adjusted so that it executes 51 oscillations in this 60 second period. Setting it up: The pendulum waves are best viewed from above or down the length of the apparatus.
Comments: Our apparatus was built from a design published by Richard Berg 1 at the University of Maryland. James Flaten and Kevin Parendo2 have mathematically modeled the collective motions of the pendula with a continuous function. A Visual History of the Cell Phone. Posted 09/06/2011 at 3:22pm | by Ambika Subramony Cell phones aren't exactly ancient technology, though with every year it becomes harder and harder to remember what they were like before our beloved iPhones.
The iPhone was released in 2007, but mobile phones have been around since the 70s and have made leaps and bounds since then. From the very first "brick" phone, to the first camera phones and smartphones, this gallery covers all the major milestones in mobile phone history. 1 of 31 A Visual History of the Cell Phone View the full image 1983 - Motorola DynaTAC 8000xThis mobile phone by Motorola was debuted in 1973 by Dr. 2007 - Apple iPhoneAs well all know, phones haven't been the same since the release of the iPhone in 2007.