The go-to presentation-creation tool for many teachers and pupils is PowerPoint. So as your pupils are already familiar with using Microsoft PowerPoint then consider using Microsoft PowerPoint Online available to all Glow users in Scottish schools as part of Microsoft Office 365. PowerPoint Online is available anytime, anywhere with online access so can be accessed at home or at school.
You can upload an existing PowerPoint presentation from your computer or other device to your OneDrive in Office 365 in Glow (and then edit online from then onwards) or you can simply log into your OneDrive and create a new PowerPoint presentation completely online. You can choose to keep the presentation private to you in your own OneDrive (the online cloud storage with massive capacity available to every Glow user in Scottish schools). Or you can, at any time, choose to make a PowerPoint Online presentation visible to other users of your choice – and you can choose whether to allow them to just be able to view it or show it without being able to make changes, or you can give other users the access rights to be able to jointly edit the presentation with you, either at exactly the same time as you or at different times to suit each user.
Have a look at the Sway presentation here for a step-by-step guide for learners to create a PowerPoint presentation in PowerPoint Online in their OneDrive in Microsoft office 365 via Glow and to share this with other Glow users to be able to jointly edit the same presentation.
The link below take you to a classroom activity for pupils to use PowerPoint Online to create (jointly with other pupils on different devices at the same time) a robot character. The step-by-step guide to this activity can be adapted for other curricular-specific tasks which would benefit from a group of pupils working collaboratively on the same PowerPoint presentation, whether simultaneously or at different times: