What is it?A great often overlooked feature is Google Assistant, it works to varying degrees on Google Home, mobile devices and Chromebooks and can be a very useful addition to a classroom.
There is an ever increasing number of things you can ask Google just by talking to Google Assistant. On most Android phones it's just a case of saying 'Okay Google' or 'Hey Google' within ear shot of your phone and then asking your question. There may be a little more setup required if you're using an older version of Android or a device that defaults to the manufacturers setup. If you're in posession of a phone that already has Google Assitant you wont need to install the app. If you don't have it here's a link to it on the Play Store and in the App Store
What can it do?
Give it an instruction
Need to give students a specific time frame to complete a task, ask Google to do it for you. Things like 'Hey Google count to 100' are as easy as that just ask and you shall receive. It also remembers things for you so you could say hey remember there are 20 students here today and later recall that information by saying 'what did I ask you to remember' to use in a different situation.
If you want to look into machine learning check out this little experiment by Google that allows you to look into teaching your very own machine.