congresshouse of -quarterstwo-thirdseach statenational conventionnational legislatures
there are four ways the constitution may be amended, and those ways can be divided into two steps.

step 1 is to - or officially suggest- that an amendment be added. this can be done one of two ways. of both houses of congress can suggest that the constitution be changed. this mean both the and the . but there is another way an amendment can be proposed: a can be called by congress, and people from each state can meet to propose and amendment. if one of these methods is used successfully, then it is on to step 2.

step 2 involves the process, meaning the approval process. there are two ways this can happen. of the legislatures of all of the states must approve a proposed amendment for it to become law. but there is one other way: a national ratifying convention can be held, where representatives from meet to vote on the proposed amendment. if three-fourths of those representatives agree, then the amendment becomes law.

the usual method of adding and amendment has been using to propose an amendment and the to approve. never has a been used to propose an amendment.