How to Screen Record on Chromebook with the Keyboard

Step1: Press the Screenshot key on your Chromebook’s keyboard. They key is located in the function row and has a camera icon printed on it.

Step2: Press the Screen Record icon to switch to screen recording mode.

Step3: You can now choose from three screen recording options, each located in the center of the toolbar.
– Record full screen: Used to record the entire screen at once.
– Record partial screen: Used to record only a portion of the screen. This option, when selected, will ask you to drag a box around the area you want to record.
– Record window: Will only record the current browser or app window you select.

Step4: Select Stop screen recording, found in the ChromeOS task bar, to end the recording session.

Credit : https://www.lifewire.com/screen-record-on-chromebook-5545752