Random close pack crystal lattices have maximum densities equal to this upper limit. Random close packing does not have a precise geometric definition. It is defined statistically, and results are empirical. A container is randomly filled with objects, and then the container is shaken or tapped until the objects do not compact any further, at this point the packing state is RCP. The definition of packing fraction can be given as: "the volume taken by number of particles in a given space of volume". In other words, packing fraction defines the packing density. It has been shown that the filling fraction increases with
English as a second or foreign language to programs for Aboriginal peoples in Canadian or Australians. The term refers to the use of standard English by speakers of a creole or non-standard variety. It is often grouped with ESL as "ESL/ESD". All these ways of denoting the teaching of English can be bundled together into an umbrella term. Unfortunately, not all of the English teachers in the world would agree on just only a simply single term(s). The term "TESOL" (teaching English to speakers of other languages) is used in American English to include both TEFL and TESL. This is also the case in Canada as well