Nearpod is an interactive classroom tool for teachers to engage students with interactive lessons.
Do you have a website you would like to have all of your students view? If you are using Chromebooks, you can use the Share To Classroom Chrome Extension to immediately have the page open on all your students computers at the same time. You can find out the instructions at this website support.google.com/edu/classroom/answer/6272843?hl=en
Use Math Manipulatives
as a whole class
A great way to use 1:1 computing is by using Math Manipulatives online! Students can practice concepts that you have just taught in the lessons.
draw and WRite
Students can write or draw their answers, responses to stories, math problems and much more.
You can find some great websites with activities to reinforce any concept you are studying.