The Met Office has issued severe weather warnings for pupils living in Scotland, with up to 12in (30cm) of snow possible in many areas.
Heavy snow has covered the central belt and southern Scotland as Arctic conditions returned to the country.
Freezing conditions caused disruption on the M8 in West Lothian, with roads in rural Stirling were also affected.
Central Scotland Police said it had closed the road between the Kippen roundabout and the Ballat crossroads.
Meanwhile, Transport Scotland said it had "robust" supplies of salt and winter vehicles on standby.
lying areas in central Scotland, including Glasgow and Edinburgh have experienced between 1-2ins (2-5cm) of snow, with up to 4ins (10cm) on higher ground.
The wheather conditions is likely to get normal in coming week.
On the M8 at Whitburn in West Lothian, heavy snow and ice led to four lorries becoming stuck, causing disruption.
In Fife, a lane of the snow-covered M90 was shut after a car accident. However, Fife Constabulary said it had now been cleared.