Bambismum it is a horrible feeling isn't it? I cried all the way through a documentary about dyslexia by the Eastenders actor Kara Tointon. She visited a specialist, independent school and it was s different to my kid's experiences.
4DC here all dyslexic.
Good advice from PP above re not copying from board and also not being asked to read aloud in school.
We found that after a certain amount of support at home any further effort was either a waste of time/money or counterproductive until and unless they were ready. We just tried to spot developmental moves forward and move with it.
Remember that school will be more tiring for him due to the extra effort he has to make with processing etc so he will need a break from it.
You are obviously very caring parents but however hard you try you cannot make him not dyslexic. It isn't a case of him catching up. He will be literate but he is going to take a slower and different route.
We tried to focus on self esteem and education in the broader sense. Of course you need to read and write but a good education is so much broader than that.
We did the following:
Enjoyed books together - lots of bedtime and rainy day reading out loud (me reading), lots of audiobooks,
Visual stuff - art and craft at home, children's theatre, musicals, dance
Cooking together
Museums/galleries - great activities for kids. There are often trails and worksheets but we put no pressure on to write or read
Find something they are good at - e.g. music, kids choir, brass band, folk group (no need to read music), mine play strings in orchestra and have a very good ear which gets them through
Sport - team sports are great if they like them but I'd not martial arts, kick boxing, trampolining, parcor/free running, kayaking club with a parent
Talk about whatever they a interested in, watch stuff together, talk about whatever comes up in current affairs etc
Let them read anything - survival guides, encyclopaedia of butterflies, Beano, non fiction,
We gave up on times tables. A friend has dyslexic children and they spend every summer trying to learn them. They still don't know them.
Our kids are at uni, doing an apprenticeship, doing GCSE's etc. We have found that the "nicer" the primary school the fewer strategies they had to help. One school gave the same spellings as his bright friends because they didn't want to make him feel different. The same teacher said, "it's funny that his vocabulary and general knowledge are really good but reading and spelling are poor." The head teacher looked embarrassed and said, "um that is dyslexia."
My DSs current school has a special needs unit and a much higher free school meals rate than his last one and they take a well behaved, enthusiastic boy with weak spelling and times tables in their stride.
Sorry that is so long 