BallDroppings Musical scale The frequencies 440Hz and 880Hz both correspond to the musical note A, but one octave apart. The next higher A in the musical scale would have the frequency 1760Hz, twice 880Hz. In the western musical scale, there are 12 notes in every octave. These notes are evenly distributed (geometrically), so the next note above A, which is B flat, has frequency 440 × β where β is the twelfth root of two, or approximately 1.0595. The next note above B flat, which is B, has frequency 440 × β 2. Left is a table of the complete musical scale between middle A and A-880. The psychoacoustic properties of the musical scale are fascinating. Frequencies that are harmonically related tend to sound good together. The blue waveform is the sound you hear, which is a combination of the other (pure tone) waveforms. What about 440 × 3 = 1320? For somewhat more arcane reasons, the interval between A and E, which is a frequency rise of 3/2, is called a fifth. Where does the C sharp come from in the major triad?
Music This article is about music as a form of art. For history see articles for History of music and Music history. The creation, performance, significance, and even the definition of music vary according to culture and social context. Music ranges from strictly organized compositions (and their recreation in performance), through improvisational music to aleatoric forms. Music can be divided into genres and subgenres, although the dividing lines and relationships between music genres are often subtle, sometimes open to personal interpretation, and occasionally controversial. To many people in many cultures, music is an important part of their way of life. Etymology The word derives from Greek μουσική (mousike; "art of the Muses").[4] Music as form of art Jean-Gabriel Ferlan performing at a 2008 concert at the collège-lycée Saint-François Xavier There are often many links between amateur and professional musicians. Composition Notation Sheet music is written representation of music. Play Theory
Curvy in HTML5 Curvy is a HTML5 puzzle game using the canvas element. Just rotate the tiles so that like colors connect. Modernizr tells me you don't have canvas support in your browser. Sadly, this game uses technology that's only in browsers with HTML5 support. Presented to you by FlamingLunchbox is a puzzle, originally for Android phones, using a simple idea. Each Curvy puzzle consists of a grid of hexagonal tiles. Curvy allows a variety of different puzzle sizes, providing puzzles that can be quickly solved as well as more complex versions depending on the size you choose. Want it on Android? We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Tracks on a Map Tools A tool is any physical item that can be used to achieve a goal, especially if the item is not consumed in the process. Informally the word is also used to describe a procedure or process with a specific purpose. Tool use by humans dates back millions of years, and other animals are also known to employ simple tools. Tools that are used in particular fields or activities may have different designations such as "instrument", "utensil", "implement", "machine", or "apparatus". The set of tools needed to achieve a goal is "equipment". The knowledge of constructing, obtaining and using tools is technology. History Up until recently, weapons found in digs were the only tools of “early man” that were studied and given importance. Machine tools occasioned a surge in producing new tools in the industrial revolution. Functions One can classify tools according to their basic functions: Some tools may be combinations of other tools. Tool substitution Multi-use tools Bicycle multi-tool Use by animals Notes
Cube Tour Problem Solving This interactive whiteboard resource is another where its purpose is to allow teachers to easily set a thinking skills activity for their class. The strength of this puzzle is that it can be easily carried out on computer or with easily made pieces. The challenge was originally set byJohn Harris and is one of the ones included in The Colossal Book of Short Puzzles and Problems by Martin Gardner. The challenge is to start with a cube that has one face marked. The resource records the high score in each session so if you wish to allow the class to attempt this on computer you can see what their best attempt has been. Challenges such as these encourage children to devise their own strategies and analyse the problem to reach a solution. To make the puzzle physically use or print a normal chess board and find a cube whose faces are close to the size of squares on the board. Go to Cube Tour interactive whiteboard resource.
11 Points - A Blog of Lists by Sam Greenspan. Funny lists, movie lists, sports lists, top lists. So, basically, lists. This Band Is Sick » The Sickest Bands You Need To Hear 65 Free Interactive Whiteboard Resources Interactive whiteboard resources are a great way for teachers to engage classrooms in learning. While many teachers are spending hours a day creating their own activities for their interactive whiteboards, there are tons of free sources to help teachers learn about and use IWBs with students to further their use of technology in the classroom. Here is a list of some great interactive whiteboard resources and activities guaranteed to stimulate learning: General Interactive Whiteboard Resources for Teachers TeacherLED – TeacherLED is a site dedicated to making the use of Interactive Whiteboards (IWB) easier and more productive. With many kids at home due to COVID-19, maintaining the same level of physical... The recent ongoing pandemic has schools reimagining how they celebrate their... With the school year coming to a close, providing closure for students is... Delivering quality education to students through eLearning can be difficult.... Interactive Whiteboard Games & Activities