A marble run set up, from the Gravitrax brand.

Another lovely night playing "conservation of energy" with my daughter. The box says 8+ but I would easily give it a 10/10.

#mathsbuild
#classicalmechanics
#mathstoys

A square based stepped pyramid consisting of 8 layers of Duplo

At some point I need to stop pretending that I am teaching my daughter maths, and just admit that I like #Duplo

#mathschat
#mathstoys
#buildingmaths