More than 10,000 children have checked in to Carmarthenshire schools so far.
This includes 6,144 primary school children and 4,226 secondary school pupils, according to council figures for last week.
Some pupils have attended school more than once – with the total number of check-ins for last week exceeding 14,000.
There are approximately 28,000 pupils registered in Carmarthenshire schools and these figures show around 38 per cent of pupils attended school last week.
All pupils are being given the opportunity to check in, catch up and prepare before the summer holidays and the new school year in September.
Schools across the county have reported that both staff and pupils have been happy to return, and that safety measures that had been put in place have been a success.
Children have been split into smaller groups and schools are operating staggered break times, and start and finish times. There are also separate entrances and exits, and one-way systems where possible to help with social distancing.
High touch surfaces are being cleaned regularly throughout the school day, with a full clean taking place every evening. There are hand-sanitisers in every classroom and portable handwashing stations where needed.
Children are being encouraged to safely walk, cycle or scoot to school, or for parents to provide transport, as school transport is operating at a limited capacity.
School meals are not being provided this term and pupils who are in school for a full day are being asked to bring in a packed lunch.
Headteacher of Ysgol Dyffryn Taf in Whitland Julian Kennedy said: “The return of pupils to Dyffryn Taf has been a great experience. Staff and pupils have been delighted to see each other again.
“Everyone has worked incredibly hard to build a safe, inclusive and positive learning environment, all whilst maintaining a distance learning programme.
“Pupils have been able to check in with form tutors, get reassurance and advice, and make sure they are ready for whatever September might bring.
“Most importantly though, we have given staff the freedom to be creative and to try new things. Our pupils have been learning on screens for three months now - when they are on site, we want them to do something different.
“So, as well as maintaining their literacy, numeracy and wellbeing, pupils have been out in the fresh air orienteering, playing team-building games or simply building up their skills and fitness on Just Dance!
“Attendance has been really pleasing and everyone, both staff and pupils, have left with a smile on their faces. We very much hope we can devote one or two days at the start of the new academic year to finish the transition programme for Year 6 pupils that we were unable to complete this summer.
“The Governing body, staff, pupils and their families and the local authority have combined excellently to achieve a huge amount in a short space of time. We all want to get back to normal as soon as it is safe to do so, but until then we are delighted with how the ‘new normal’ is going.”
Children that are shielding or are living with someone in this group should not come back this term and should continue learning at home.
Parents who choose not to send their children back will not be fined and will also continue to receive support with home learning.
For Carmarthenshire puppils, the term finishes on July 17.
Executive Board Member for Education and Children’s Services Clr. Glynog Davies said: “I am delighted that pupils and staff have had such a great first week back at school. I think it is really important that they have had this opportunity to catch up before the summer holidays.
“We have already started to plan for September and as soon as we have further guidance from Welsh Government, we will be able to share these details with parents.”