We do not currently run a separate student-discount programme. But if you are a student buying with your own money, these are the discounts that do exist, and every one of them is open to you:
The 10% welcome discount for newsletter sign-ups — see I didn't get my 10% welcome discount code.
Seasonal sales and promo codes — sales run through the year, and I received a promotion code. How do I apply it? covers using a code at checkout.
If you are buying for a student club, a class project or anything institutional, the school routes are usually the better starting point: volume pricing is covered in Do you offer special discounts for schools or government institutions? and the paperwork side in Schools, resellers and bulk orders.