What is similar about why congress and the courts informally change the constitution? how do their methods changing the constitution vary?

Question: What is similar about why congress and the courts informally change the constitution? How do their methods changing the constitution vary?

Similar changes of the constitution:

Both change the constitution focusing on the following: Social, cultural and legal changes. Both use judicial interpretation to amend the constitution. This means that the federal courts had the power to nullify actions of the national government if it had a conflict with the Constitution.

Different changes of the constitution:

Court: The nation’s courts interpret and apply the Constitution as they see most fits always considering the following: President, Powers given to the office, Commander and Chief and Executive Agreement.Constitution: The constitution has provisions which have to be considered in order for congress to pass laws. The Constitution states that an amendment may be proposed either by the Congress with a two-thirds majority vote in both the House of Representatives and the Senate or also by a constitutional convention by two-thirds of the State legislatures.