Translate the text from Welsh to English.



 
Gwelodd pob un ond deg o'r 73 gwlad a gymerodd ran yn asesiadau rhyngwladol PISA yn 2018 a 2022 ostyngiad mewn o leiaf un maes eleni. Mae perfformiad Cymru yn cyfateb i wledydd fel yr Unol Daleithiau a Norwy o ran sgoriau darllen, mathemateg a gwyddoniaeth yn 2022, yn dilyn gwelliannau yng nghanlyniadau PISA 2019\.


Mae'r Gweinidog wedi ymrwymo i ddod ag arweinwyr addysg o bob cwr o Gymru ynghyd i arwain ymateb ar draws y system\-gyfan i gefnogi addysgu a dysgu a chodi safonau mewn darllen, mathemateg a gwyddoniaeth.


Dywedodd y Gweinidog Addysg, Jeremy Miles:



> Cyn y pandemig, gwelwyd cynnydd cadarn mewn safonau llythrennedd a rhifedd yng Nghymru. Yn anffodus, mae'n amlwg bod y pandemig wedi amharu ar y cynnydd hwn.
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> Rydyn ni eisoes wedi dechrau codi safonau mewn darllen a mathemateg, a wnawn ni ddim gadael i'r canlyniadau hyn ein bwrw oddi ar ein hechel.
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> Fis diwethaf, fe wnaethon ni lansio cynlluniau llythrennedd a rhifedd i helpu i gefnogi’r dysgu a chodi safonau yn y meysydd allweddol hyn. Rwy hefyd wedi cyhoeddi'r adroddiad cenedlaethol cyntaf ar berfformiad ein plant o ran darllen a rhifedd a byddaf yn gwneud hyn bob blwyddyn i gadw llygad ar yr adferiad.
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> Fe wnaethon ni gefnogi ein hysgolion a'n dysgwyr drwy'r pandemig, a byddwn yn sefyll gyda'n gilydd ac yn eu cefnogi nawr.


Ers 2022, mae ysgolion yng Nghymru wedi dechrau gweithredu diwygiadau mawr hirdymor, gyda'r Cwricwlwm i Gymru newydd yn cael ei addysgu a'i gyflwyno i bob dysgwr ym mhob ysgol erbyn 2026/27\.


Ychwanegodd Jeremy Miles:



> Mae ein diwygiadau addysg hirdymor bellach wedi dechrau ar ôl blynyddoedd o gynllunio ac, fel y dywedodd yr OECD, mae gwella addysg yn cymryd amser.
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> Rydyn ni wedi cymryd y cyfle sy’n codi ‘unwaith mewn cenhedlaeth’ i chwyldroi ansawdd addysg yng Nghymru ac rwy'n hyderus y bydd hyn yn arwain at fanteision enfawr i'n pobl ifanc.







Translation:


 
Of the 73 countries who took part in the Programme for International Student assessment (PISA) in 2018 and 2022, all but ten saw a decline in at least one area this year.


Wales is alongside countries such as the United States and Norway in our reading, maths and science scores in 2022, following an improving picture in the 2019 PISA results.


The Minister has committed to bring together education leaders across Wales to drive a system\-wide response to support teaching and learning and drive up standards in reading, maths and science.


Education Minister Jeremy Miles said:



> Before the pandemic, we saw a strong improvement in literacy and numeracy standards in Wales. Sadly, it is clear that the pandemic has derailed some of this improvement.
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> We have already started on a path of driving up standards in reading and maths and we won’t let these results knock us off track.
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> Last month we launched literacy and numeracy plans to help support learning and raise standards in these key areas. I have also published the first national report on the performance of our children in reading and numeracy and will do this annually to track recovery.
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> We supported our schools and learners through the pandemic, we will stand together and support them now.


Since 2022, schools in Wales have started implementing major long\-term reforms, with the new Curriculum for Wales being taught and rolled out sequentially to reach all learners in all schools from 2026/27\.


Jeremy Miles continued:



> Our long\-term education reforms have now started after years of planning and, as the OECD have said, improvement to education takes time.
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> We have taken a once\-in\-a\-generation opportunity to revolutionise the quality of education in Wales and I’m confident we will deliver huge benefits for our young people.