Learning Resources Precision School Balance with Weights

È stata acquistata per uso didattico. Perfettamente funzionante e resistente

Est muy bien pero le faltan los accesorios para que vana dentro de la canasta, por todo lo demás perfecto

I hot thos to do some simple demos for my HS chemistry class. Works perfectly and it is easy to demo complex ideas simply. It's really not a heavy duty working scale, but it works great for my demos.

I was looking for a weigh scale with weights to teach my children how to measure weight. I was also looking for an objective way to measure how much candy they could have, instead of guessing after every Easter, birthday, halloween, etc. There are plenty of electronic and spring balances but they don't really convey the concept of balancing.This balance has precise clearly marked weights that help them match up with food they are weighing (candy!), as well as allowing them to compare the weights of two things (such as two of their toys, or two very different types of candy).The holders are big enough for typical quantities that they use. And the mechanism is just complex enough for them to get interested in how to manipulate the measurement.The quality of the plastic seems somewhat fragile. We taught our children that it is equipment, not a toy, so they cannot carry it around and play with it. If it is handled over-enthusiastically, I suspect it will not hold up for a long time.

Produit conforme a la description mais que j'imaginais plus costaud vu le prix.Petits poids fournis, ce qui permet de pouvoir l'utiliser immédiatement.En revanche, emballage très léger, absolument pas soigné....