Measuring things such as time, volume, density and more are new concepts at young ages.
Try gently introducing these subjects with sensory materials and some measuring implements!
The simple concept of larger vessels being able to contain more materials than smaller ones may seem common sense to us, but it's in our toddler and preschool years that common sense begins to develop!
Begin this concept with any various sizes of vessels, and as your children grow you can introduce different measurement units including volume and weight.
How come this container fits more spoonfuls of Navy Beans than this one? Let's talk about that!!!