Happy July 4, Milfred, and thanks for contacting CTB. I want to refer you to our Table of Contents under the Learn A Skill tab. There you will find four chapters (36 - 39) and a related Toolkit (12) that will introduce you to the basics of Monitoring and Evaluation. (&E).
Actually, the foundation for effective M&E is built much earlier in the life of the project - during the planning stages when goals are formulated, desired and measurable outcomes are defined, and methods for measuring are selected. You can find relevant guidance in earlier CTB chapters.
You may need to go back to other project participants and help them define what outcomes they seek, and related measures. These projects take a lot of collaboration, a critical skill that often goes unappreciated.
Best wishes for a successful project!