The phrase "demonstration on how" is correct and usable in written English.
It can be used when explaining or showcasing a method or process to achieve something.
Example: "The workshop will include a demonstration on how to properly use the new software."
Alternatives: "presentation on how" or "exhibition on how".
Finally, she alerted all present to a growing trend, wherein residents were setting out "unwelcome mats," which were either electrified or studded with nails, and she asked if anyone needed a demonstration on how to brush one of these objects aside with a swift movement of the front paw.
During focus group discussions, students echoed one another, expounded on opinions of their peers and, in one case, began an impromptu demonstration on how to sew a homemade pad.
Clutching a pack of the sachets he has just received from UNICEF after a demonstration on how to use them, Abba notes that one of the reasons for Mustapha's good health is the support they have received from UNICEF's volunteer community health, sanitation and hygiene mobilizers.
Today's festivities will also include a demonstration on how to feed a carnivorous plant.
After a demonstration on how to make pizza dough, they hand us each some.
Demonstration on how to make charcoal briquettes, by Amy Smith of MIT D-Lab.
Over six weekends, the festival provides demonstrations on how to hunt for, purchase and cook with the area's fungal tubers.
Some of it I sell to hand spinners and some I keep for myself to use in demonstrations on how to make it into yarn.
They all offer affordable tastings from microbreweries from across the country (some of which are not yet available in stores or pubs), demonstrations on how to make your own beer, and ale-infused snacks.
In addition to specially commissioned films and talks, the exhibition hopes to provide knowledge and perspective on the turban's spiritual importance and will provide hands-on demonstrations on how a turban is tied.
In addition, there will be demonstrations on how early cave men are thought to have built fires as well as a practical guide to making jewellery, flint arrowheads, axes, adzes and knives.
