A teacher spot-checks how students are doing by walking around the room, selecting students to observe at random and then reinforcing those who are working well. What type of schedule is being used?

How the environment of the northeast region affects the lifestyle of the people that live there

Which of the following was not a result of early humans increasing proficiency at finding food

The tea party movement is a. an official third party that challenges both democrats and republicans in national elections. b. an organized challenge to incumbents in the republican party by the most conservative wing of the republican party. c. an organized challenge to incumbents in the democratic party by the most liberal wing of the democratic party. d. an offspring of the green party that runs for state and local office in many midwestern states. e. the now defunct party that gave way to the republican party at the end of the “second party system.”