The phrase "at the first workshop" is correct and usable in written English.
You can use it to refer to the initial workshop in a series of events or activities.
Example: "I learned a lot about teamwork and collaboration at the first workshop."
Alternatives: "during the initial workshop" or "in the opening workshop".
At the first workshop Ms. Burwell attended, girls and women were taught the rules and then paired up to play.
At the first workshop the musical was initially going to be a show within a show about characters trying to re-enact scenes from the "Priscilla" film.
At the first workshop meeting it was clear that Kroff was a serious writer for unlike the others he'd brought with him a swath of material that, he said, he carried around with him everywhere, and never let out of his sight.
While this all sounds like a bit of hooey, in fact, an impressive rosters of instrumental designers like Ron Arad, Maarten Baas, and Phillip Mallouin have tinkered with the gemstone to create lighting for this year's exhibition at the First Workshop in 751 D Park.
The proposal for a unique CCN nomenclature was discussed and approved at the first workshop [ 39].
All the organisations that were represented at the first workshop were represented at the follow-up workshop.
Debra Tyler, who sells raw milk and raises cows at Local Farm, offered the first workshop six years ago.
At the end of the first workshop (Te whakapapa o Papatūānuku), the concepts of Time-Space, Matter and Energy, the Laws of Thermodynamics, the Sates of Matter, The four Fundamental Forces, the Origin of the Universe, Solar System, Planets, Earth structure, and the importance of soils and water conservation were effectively shared (Table 2a and 2b).
The project Steering Committee (SC) includes all team leaders and was established at the start of the first workshop.
MSH staff and provincial facilitators visited each health unit at least monthly after the first workshop to support the participants and assess progress.
They attended the first workshop at the University of Florida and the second at the University of Oklahoma.
