Richard Byrne, a highly-respected ed tech consultant, publishes a free handbook on technology for the classroom every year. The latest one is available here
Microsoft have recently been devoting a lot of attention to making their products more accessible. They really have made great strides in the past 12 months. This video webinar gives a great overview of how the new tools can be used in the classroom.
There are 2 other webinars in the series
These apps work straight from your browser and save you the cost and hassle of downloading programs. I’m sure you will find something useful for your classroom here: https://123apps.com/