Congress is exercising its power under the “elastic clause” when it: A. Declares war on a foreign nation

B. Establishes a post office in a community

C. Authorizes the testing of nuclear weapons

D. Prohibits export taxes

One common educational practice is to chart students' progress over time so that students can see their own improvement. these progress charts often lead to higher student achievement in the absence of other observable forms of reinforcement. the effectiveness of such charts in changing behavior illustrates the role of reinforcement as:

Gettysburg address question. what is the best line from the address? why do you think so?

Imagine a child who consistently gets mediocre grades and is often picked last for a team when games are played at recess. however, he likes to make silly jokes and play pranks, and he notices that people laugh when he does those things. the child starts to think that others are laughing with him, not at him. this is part of the process that charles cooley