That will depend on the requirements and compatibility of the APPs the student will need to use to participate. The Lenovo IdeaPad 1 14 Laptop, model number 81VS009GUS ships with Windows 10 S-Mode Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. We recommend you check with both the provider of the online learning for requirements as well as the APP software publisher's web sites for their compatibility with Windows 10 S-Mode 64-bit operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration. Please keep in mind, The Lenovo IdeaPad 1-14 laptop is an entry level, light use system with its AMD A6-9220e processor, with a base speed of 1.6GHz and a boost speed of up to 2.4GHz, 4GB of RAM and a 64GB eMMC solid state hard drive, for quick access to files and programs.

You are correct, the Lenovo Yoga C740-15, model number 81TD0005US, ships with a 3CELL_60.3WH_INTERNAL, Lithium Polymer Battery, with a battery life of up to 15 hours, depending on the work the device is performing. If you are only getting 2 to 3 hours of battery life, first be sure that Battery Conservation Mode is turned off. This power management setting is used only when the laptop is plugged in all the time. It prolongs overall battery life by charging the battery to only 60-percent of capacity. Here is a link to instructions for turning off Battery Conservation Mode:
https://support.lenovo.com/us/en/solutions/ht103159. Additionally, be sure any software you installed is compatible with Windows 10. Incompatible software will drain the battery at a higher rate. There is no need to install Microsoft Office software. The software is already part of the operating system, you just need to activate the software with a purchased product key. If you have installed a copy of Microsoft Office, this is conflicting with the existing copy on the system and this will slow your system down. If you have installed a 3rd party anti-virus program, be sure that Windows Defender is turned off and that the trial version of McAfee Anti-Virus software is uninstalled. There can only be one anti-virus program on the system. You may need to restore your system to original factory default settings if any of the programming errors have occurred. You can do that by typing "restore" in the Cortana search window. Just click on the magnifying glass icon at the bottom left of your Windows 10 Desktop. Click on "Reset This PC" Then click on "Get Started" and follow the on screen directions to restore to factory defaults. Also, be sure there are no programs running in the background on your computer that you don't want running. These background programs drain the battery. Here is a link to information about how to find out what programs are running in the background on your Windows 10 computer and how to manage them for better system performance: https://www.windowscentral.com/how-prevent-apps-running-background-windows-10. Finally, if the issue continues, we recommend you call Lenovo Tech support for more help with your specific issue at: 877-453-6686.

You can use a universal USB 3.0 dock with the Lenovo IdeaPad 3 17, model number 81W2004AUS, like this one. It uses DVI for video connection. You can use a DVI adapter to connect a HDMI or VGA monitor: https://www.bestbuy.com/site/startech-com-dvi-dual-monitor-usb-3-0-docking-station-black-silver/4686048.p?skuId=4686048

The Lenovo Yoga C940-14 4K model number 81Q90041US, ships with Microsoft Windows 10 Home 64-bit Operating System installed, you will need to activate Windows 10 and set it up to your personal preferences. There are both audio as well as on-screen, step by step instructions to walk you through the activation and setup process of Windows 10. There is a 30-day trial of Microsoft Office 365 included as part of the Windows 10 operating system. In order to keep the program active after the trial period, you will need to purchase a product key. You will not need to download any additional software. The Yoga C940-14 4K ships with a built in Touchpad that acts in place of an external mouse. You can purchase and use an external mouse if you choose, separately.