![]() Shapes are an important part of building math reasoning in a child. The shape is one of the aspects that intrigue kids a lot. ![]() ![]() Please read my disclosure (link) for more info. You can then see how changing the string’s tension and initial displacement changes this wave.Please Note: This post may contain affiliate links. You can hear the sound then see the animated sound wave, which has been slowed down so that you can see it. This clever applet from Illuminations should help you understand the dynamics of sound. Students create a graph of the height, and or horizontal distance, of a seat on a Ferris wheel to explore the sine and cosine function and characteristics of the unit circle. This is a very useful Geogebra applet for introducing the Unit Circle. I like asking them to write the reflection of their name and watching the applet write it the correct way around. Let students play with it for a while then ask them to draw some specific shapes. This art drawing app allows the user with mouse, or tablet pen, to draw a picture and watch its reflection appear. Here is one that makes a good introduction to 2D representations of 3D shapesA ready made lesson resource that links to this activity is available from the Plans and Elevations. Harcourt School publishers (have a very useful "Learning Site" with some virtual manipulatives available. A ready made lesson resource integrating the best of this website is available from the Plans and Elevations.ĭraw and Name the 3D shape given its Elevations The Freudenthal Institute's excellent wisweb ( - you may now experience "Java" software issues) offers two resources for exploring front, side and plan elevation 2D representations of 3D objectsLots of interactivity and a superb medium by which students can acquire the necessary experiences for developing their visual awareness. There are 15 accompanying questions will check up knowledge. Nets are explored, surface areas and volumes investigated, Euler’s Theorem explained and we discover the Platonic solids. Explore the properties of 3D shapes with a series of lessons using various virtual manipulatives. Scroll to the bottom of the page and keep pressing "next" until you come to the page you're interested in. A missing space, for example, will cause an error. Those not familiar with programming should take care to use the right syntax. A ready to go activity to discover the rules for a) the sum of exterior angles of a regular polygon and b) the exterior angle of any regular polygon or star can be found at Polygons and Stars. Enter commands to move an arrow around the screen. Five accompanying investigations to go with it give you some ideas how to use it: find shapes with perimeter 16, maximize area, finding area of a triangle, … Simple but with oodles of possiblities.Ī free online Microworld from mathsnet. Entries are listed by topic subheading, although its not always easy to separate so its worth looking through the lists! Properties of Shapes GeoboardĪnyone who has enjoyed playing with geoboards (nails half driven into a wooden board with elastic bands to investigate geometric properties) will love this virtual version. Where possible they will link to an example of how they can be used in the classroom. The following page lists some examples of some of the best freely available virtual manipulatives on the web for teaching Geometry and Measurement. 'Great tools, freely available on the web for teaching Geometry and Measurement!' This applet can provide a starter to an activity on Modelling Sound which will help you discover the underlying mathematics behind music. You can then see how changing the string’s tension and initial displacement changes this wave. Geogebra(advanced):Create your own Interactive materials.Applications, Hands-on Maths & Self-instruction. ![]()
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