I am not one who advocates throwing out every lesson from the past, but there are very few that could not use some tweaking.
Most particularly, think about the use of tech. "Substitution" is not the level for which we all strive on the SAMR model, but it's a start. There are VERY FEW projects that could not be replaced with tech presentations. Students can even record their own voices and allow avatars to be the visual!
Tech is the tool of the future. It's THEIR tool. I am not going to submit my reports using a feather and an inkwell. The same courtesy should be extended to the children I am growing!