The Yenka blog

25/02/10: new statistics lessons, and electrical power loss

This week we've got some new lessons for teaching maths.  We've been adding new tools to Yenka Statistics, to let you experiment easily with graphing and handling data. We've also got a lesson made with our new Electricity and Magnetism simulator.

If you've not already got Yenka Statistics, or any of our other Yenka products, you can get a free licence to try out the lessons.

Plotting scatter graphs

Made with Yenka Mathematics - (Statistics)

Yenka Statistics lets you create and edit datasets easily.  As well as typing in data, or importing from spreadsheets like Excel, you can add data by clicking on the scatter graph - each time you click, a new data point is added.

When you add a graph to the screen, such as a histogram, it automatically starts graphing your data.  Yenka Statistics updates all of the graphs and charts on the screen as you edit data. 

Click a point, bar or entry in the data table, and the same data point will be highlighted in all of your charts and tables.

Relationship between height and arm span

Made with Yenka Mathematics - (Statistics)

In this model, Yenka lets you enter data for the height and arm span of students in your class - so you can check whether a correlation exists between the two measurements.

Yenka Statistics lets you add a line of best fit to your scatter graph.  The software will draw the line for you, as well as giving you the type and strength of correlation, and the correlation coefficient.

Power loss and transformers

Made with Yenka Science - (Electricity and Magnetism)

In this model, made with our new 3D electricity simulation, you can experiment with a simple power distribution grid, and learn why higher voltages are better for transmitting electrical power over long distances.

Yenka Electricity and Magnetism lets you build your own 3D distribution grids, choosing from a range of power stations and consumers, and setting key parameters like power output, transformer ratio and power line resistance.

Posted at 01:11PM Feb 26, 2010 by Dominic  |  Comments[3]

18.02.10: Loops, Le Chatelier and Diffraction

This week we've got three more new simulation-based lessons for you to try with Yenka.  If you've not already got the Yenka products we've used to make them, you can get a free licence to try out the content.

Programming Loops

Made with Yenka Computing - (Sequences)

In this model, you can learn about programming loops by controlling a dancing boy. Arrange flowchart commands to make him complete a looped sequence of dance moves - and then choose your own dance steps to customise the routine!

We created this with Yenka Sequences - which is completely free to use in school, as well as at home.

Le Chatelier's Principle - Temperature

Made with Yenka Science - (Inorganic Chemistry)

In this simulation, you can apply Le Chatelier's principle to the equilibrium reaction of ammonium chloride. Change the temperature of the reaction and observe the changes in the volume of gases to deduce whether the forward or reverse reaction is endothermic.

Wavelength and Diffraction

Made with Yenka Science - (Light and Sound)

In this model, a radio transmitter is broadcasting a signal which is being detected by a hut on the other side of a hill. By changing the wavelength of the signal, you'll find that it can be diffracted around the hill so that the signal is stronger at the hut.

Posted at 12:00PM Feb 18, 2010 by Dominic  |  Comments[3]