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Different revision techniques work for different people, but I find that employing a variety of different methods is often the best way to ensure that the most information information is retained. When st...

The basic expectation of any examiner when marking a source-based question is whether you have identified the value of the source to an historian with reference to the relevant historical context...

These are all types of long-term memory. Episodic memory is our memory store for personal events, it is our ability to recall memories from our daily lives. It is like a diary, memories are time stamped a...

Surds are exact - they can’t be rewritten as a decimal or fraction without introducing a rounding error. If we’re using numbers in a calculation, keeping them as exact as possible until we round to the re...

We know that two vectors are perpendicular when their dot product is equal to 0. As you can see from the SQA Higher Maths formula sheet, the equation for the dot product is; A.B=a1b1+a2b2+a3b3.To...