Why did jamestown colony was built in a triangular shape

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:

Explain what commentary austen is making about social conversation based on this excerpt. your answer should be at least 150 words.

Describe how a person can have both high and low self-esteem.