There are 4 NRICH Mathematical resources connected to GeoGebra, you may find related items under Physical and Digital Manipulatives.Broad Topics > Physical and Digital Manipulatives > GeoGebra
Can you make sense of these three proofs of Pythagoras' Theorem?
Investigate what happens to the equation of different lines when you translate them. Try to predict what will happen. Explain your findings.
Investigate what happens to the equations of different lines when you reflect them in one of the axes. Try to predict what will happen. Explain your findings.
Engage in a little mathematical detective work to see if you can spot the fakes.