The minimum entitlement if you are employed under the Burgundy Book is as follows:
Teachers with at least 26 weeks' continuous employment with their current employer and at least 1 year's continuous employment with one or more local authorities.
Teachers who have by the qualifying date completed at least 1 year?s continuous employment with one or more local authorities will benefit from the full entitlements under the Burgundy Book scheme. If they have completed at least 26 weeks? continuous employment with their current employer, they will also be entitled to Statutory Maternity Pay.
Eligible teachers will be entitled to the following benefits.
Ordinary maternity leave of up to 26 weeks which will be paid leave as follows:
? first 4 weeks of absence:​full pay inclusive of Statutory Maternity Pay (SMP);
? next 2 weeks:​​90 per cent of a week?s salary inclusive of SMP;
? next 12 weeks:​half pay plus £136.78 SMP (not exceeding full pay);
? next 8 weeks:​​£136.78 SMP.
Additional maternity leave of up to a further 26 weeks, 13 of which will be paid at the SMP rate of £136.78 per week, with the remaining 13 weeks unpaid.
Such teachers can now remain absent for a total period of up to 52 weeks. They will also be entitled to take statutory unpaid parental leave at the end of this period, since they will satisfy the requirement for 1 year?s continuous employment with the current employer.
In addition to this, some LAs have local agreements with teaching unions to pay more than the minimum entitlement.
Info here