Here are a few technology tools that might work well in your classrooms.
Desmos - Graphic Calculator and Simulation tool
Lucidchart- Infographics, flowcharts, diagrams
Padlet - Collaborative tool (like a blank white/bulletin board, students add content)
Quizlet - testing/reviewing activities
Haiku Deck - presentations
Prezi - presentations
H5P - multiple activities: presentations, quizzes, charts, games, etc.