The cheapest way to insure a learner is to get short term learner insurance in my opinion. It starts with a 4 week initial insurance cover period but if you need additional cover, you can extend it a week at a time. This would enable your daughter to get the driving practice she requires with you by her side. The good thing about this kind of policy is that it is held in the learner's name, so any claims that your daughter makes would not affect your no claims discount at all. It costs around £100 for 4 weeks.
When she's done learning, she can then look for her own insurance. For more information on this type of insurance, please follow the link above.
