05/03/10: histograms, capacitors and NAND gates
This week, there's another updated tool in Yenka Statistics. The histogram updates live as you edit your dataset, and displays either equal or unequal class intervals. We've also got a couple of electronics lessons for you, for use with Yenka Electricity and Magnetism or Yenka Electronics.
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. You'll need to download the latest version to use the new simulations.
Made with Yenka Mathematics - (Statistics)
Yenka Statistics now offers a new histogram tool, which lets you plot data with either equal or unequal class intervals.
In this model, a histogram with unequal class intervals displays the
heights of the students in the animated line-up. It lets you understand how frequency density is
used draw a histogram, and use this to work out how many people are over a given height.
Use the histogram to check your
answers, and alter the class grouping.
Practise this activity again using a new random sample.
Made with Yenka Science - (Electricity and Magnetism)
In this model, a graph shows the change in current as a
capacitor is charged and discharged.
Change the position of the switch
in the circuit to charge or discharge the capacitor and watch how this
changes the current flowing through it.
Click the capacitor, the battery or the resistor to edit the capacitance, the voltage or the resistance, respectively, and see how it affects the graphs.
Made with Yenka Electronics
In this model, you're challenged to build a circuit using only NAND gates, which will function in the same way as a sample circuit which uses an AND gate, a NOT gate and
an OR gate. There's an introduction to combining logic gates in this model.
Yenka Electronics lets you simulate your own circuits freely, building them up with over 100 types of component - most of which have editable parameters.
Posted at 04:36PM Mar 05, 2010
by Dominic |