Craft persuasive bid proposals for construction projects with this comprehensive guide. Explore key components, from project overview to pricing details.Item 4 – Scope of Work. Search the Bidding Opportunities below to learn about dates, scope, and general information for upcoming and past North East ISD school construction projects. The quantities in the proposal are approximate. An Invitation for Bid is a written document inviting suppliers to submit a formal bid to provide good(s) or service(s) for the ordering entity. 4. Description: Bexar County Public Works is seeking competitive bids from contractors to renovate the Southton.