4.1. Chronological and Historical Thinking Skills: Students use chronological sequencing of key events and symbols to understand the movement of people and the expansion of boundaries in the United States.
4.1.3. Use appropriate vocabulary of time
4.2. People and Events: Students explain the historical significance of key people and events in order to examine the expansion of the boundaries and development of democracy in the United States.
4.2.1. Explain how early explorations affected the expansion of boundaries and development in the United States
4.2.2. Cite evidence to support the key contributions and influence of people in the history of the United States