On your mac desktop, choose Apple menu in top corner and system preferences.
Controls & Settings guide
Once you’ve set up a ‘Child Account’ on your Windows 10 device you can manage your child’s activity on the device and online. You get automated reports and weekly email breakdown of their activity to adjust settings if needed.
To have Yosemite installed on your mac computer. Password for all users.
See more resources and articles to help children stay safe online.