I think the reason we teach vocabulary is that with out word understanding how will students gain a higher educational concepts. The web site for Dr Marzano's six steps for successful vocabulary is http://jc-schools.net/tutorials/vocab/strategies.html.
Vocabulary List for America at work- Mining
Tier one:
Tier two:
3. Minerals- a naturally occurring substance that is mined or extracted from the ground
4. Energy- a power supply or source
Tier three:
3. Shale-a dark fine-grained sedimentary rock composed of layers of compressed clay, silt, or mud
4. Sedimentary-describes rocks formed from material deposited as sediment by water, wind, or ice and then consolidated by pressure