You may include internships or free-lance work. If you managed a project or supervised others, say so. Use verb phrases, not complete sentences. Your most relevant experience. Within each category, list experience in reverse chronological order.
Some sections are optional.
If you apply to a design firm it is usually obvious, given your background, what kind of job you want, so an objective statement is optional. Use one if there is anything unusual about your interest which you would like to communicate, for example, a strong interest in construction, or a desire to integrate planning and landscape architecture. Awards, Honors, Prizes. Minor honors such as undergraduate Dean's List can be included with the degree to which they pertain. International students should interpret awards that Americans may not be familiar with.