======mathematics====== //Some places to start a journey ...// ====number==== {{section>teaching:topics:number:axioms#number&noheader&nofooter&noeditbtn&firstseconly&readmore}} ====sums of sequences==== {{section>teaching:topics:calculus:sequences:#sums_of_sequences&noheader&nofooter&noeditbtn&firstseconly&readmore}} ====dynamics==== {{section>teaching:topics:calculus:introduction#motion&noheader&nofooter&noeditbtn&firstseconly&readmore}}
====geometry==== Try [[https://www.euclidea.xyz|Euclidea]], a modern version of the classical compass-and-straight-edge problems that kept European mathematicians and students busy for many centuries.