![]() Atomic clocks use a beam of cesium atoms that are excited by microwave radiation, causing them to vibrate at a precise frequency. In modern atomic clocks, the oscillation of atoms is used to regulate the clock's timing. These vibrations are used to regulate a timing circuit, which in turn controls the display of the time. ![]() In electronic clocks, oscillators are typically based on quartz crystals, which vibrate at a precise frequency when an electrical current is applied. The swinging motion of the pendulum is transmitted to a system of gears and levers, which turn the hands of the clock to display the time. In mechanical clocks, this is often achieved using a pendulum, which swings back and forth at a fixed rate. An oscillator is a device that produces regular, repeating vibrations at a constant frequency. The exact workings of a clock depend on its type and design, but most clocks use some form of oscillator to regulate their timing. The word "clock" enters the language around the 14th century, around the time when clocks started hitting the mainstream.Ĭlocks have played an important role in human history, helping to regulate work schedules, coordinate transportation, and synchronize scientific experiments.Ī clock works by using a system of mechanisms to measure the passage of time and display it in a useful and accurate way. The English word "clock" replaced the Old English word "daegmael" meaning "day measure." Furthermore the word "clock" comes from the French word "cloche" meaning "bell". Clocks are instruments that measure and show the time. Over time, more sophisticated clocks were developed. The earliest clocks were simple sundials, which used the position of the sun to indicate the time of day. Then go check out more course design inspiration and connect with other e-learning pros over in the Building Better Courses forum.A clock is a device that is used to measure and display the time. Ready to get the countdown timer started on creating your own example? No pressure! Once you’re finished, submit your work to the E-Learning Challenge. Make your countdown timer more inviting to learners by turning it into a friendly graphic, like Rachna Ghiya does in this example about number order.This beautifully executed circular countdown timer by Karlis Sprogis allows learners to personalize the experience by choosing the level of difficulty-which gives them more or less time for each question.This credit union acronyms course by Kristy Moede illustrates one way to use a countdown timer to challenge learners to make fast decisions. ![]() Amp up learner anticipation by using a timer that counts up, like in this fast and furious Formula 1 example by Karishma Vaz.This adorable paw print countdown timer by Mareesa McCall is a good example of how to glean inspiration from your course theme when designing a timer.Give learners more time when they answer questions correctly, like Allison LaMotte does in this smart countdown game download. ![]() If you love the idea of a countdown timer but don’t know where to start, check out this handy course full of simple countdown timer ideas by Reggie Jose.This countdown timer example by Ang CM simulates real-life road emergencies and challenges learners to respond quickly.Add some audio to accompany your timer to create a greater sense of urgency, like Stephanie Harnett does in this countdown timer example.You can use shapes to convey that time’s running out, like in this arrow-swipe game by Aman Vohra. Countdown timers don’t have to show numbers.This clever Rise 360 example by Owen Holt features a Storyline 360 block with a simple but uber-effective countdown timer.You’ll see in these 11 examples by the inventive members of the E-Learning Heroes community that countdown timers can take the form of your favorite TV characters, circles and other shapes, steering wheels, paw prints, and more. You can design a countdown timer that looks like almost anything! That way you can make sure it fits in nicely with your course design. They’re also a great way to simulate real-world tasks that involve time constraints.Ĭountdown timers don’t always have to look like a typical clock or stopwatch with numbers counting down. ![]() Countdown timers create a sense of urgency, tension, and pressure that prompts learners to quickly make a decision. Countdown timers are often used in game-based learning, and it’s no wonder why-they bring anticipation and excitement to e-learning courses. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |