Hi HappyasEyeAm
First off - you aren't at a disadvantage - you're highly educated and a Mum - that's a huge advantage. Statistically your child is highly likely to do well in school just because you are so educated.
What you can do to help in reception.
- READ!!!!!! 10 minutes a day makes a huge difference - we do it after bath and just before bed and it's now my favourite 'down-time' in my day.
It may be that you're just reading to him right now - but try and find out what letter sounds they're working on at school (what phonics system they're using - say jolly phonics) - and gradually start to exaggerate to him and with him how you sound out words.
Really important to do as much reading together as possible - and can include reading things in shops, on signs, on tv, on games, etc...
If you want to help with learning how to sound out letters - try jolly phonics workbooks - available from most good bookshops/ newsagents.
Alphablocks is also brilliant and very catchy tunes: www.bbc.co.uk/cbeebies/alphablocks/games/alphablocks-games/
- HIGH FREQUENCY WORDS: The children usually will be introduced to the first 100 high frequency words in English - words like: said, the, don't, could, should etc... A lot of these words just have to be learned, they aren't obvious to pronounce. The list for 1st 100 high frequency words is here: www.highfrequencywords.org/hfw100fp.pdf.
Nice website here for phonemes (letter sounds/ blends) and high frequency word games: www.goldfield.herts.sch.uk/learning_zone/phonics.html
- In reception it really is about counting skills - to 10, to 20 and then to 100.
Counting by 2s may be introduced and even counting by 5s. Simple addition/ subtraction - with a lot of visual aids (so buttons, dried raisins, marbles, etc...) also can be introduced. It really depends where you DS is.
Games really help at this stage:
Snakes and Ladders is ideal (play forward for counting up/ play backwards for counting back - at some stage you can shift (maybe Y1, even Y2) to having them do the mental maths - you can add dice to make larger numbers).
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Crickweb (click EARLY YEARS on blue menu bar across top) has all sorts of games to help at this level: www.crickweb.co.uk/Early-Years.html
BBC has a nice page with useful weblinks to great games for Early Years Foundation: www.bbc.co.uk/schools/websites/eyfs/
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Finally don't forget the knowledge you can share just doing ordinary things at home:
planting vegetables you can grow and eat together (let him tell you how the plant is doing each time he goes out in the garden).
making cakes or biscuits (why not make a Christmas Cake and let him do all the measuring).
Looking at the stars (there are some great APPS out there that explain what the constellations are you're looking at based on your GPS location).
Read some of your childhood favourites to him
Take him to the theatre (children's play/ panto)
Take him to a music or dance event geared for young children (We did Stomp with age ranges 4 - 12+ let's be discreet about parents/ grand parents ages - and everyone loved it).
Visit Museums, especially those designed with children in mind
Visit child friendly historic sites or historic places with child centred events (English Heritage and the National Trust usually have tons going on at their properties around Halloween/ Christmas/ Easter)
Well that should keep you busy. My advice HappyasEyeAm - is do what you can, when you can - and don't beat up yourself about doing everything.
Do try and keep in touch with the school/ teacher about what is going on, so that you can help support him at home. Don't be afraid to ask questions - you'd feel awful if you subsequently find out he's fallen behind and you could have been helping with something.
Get in the habit of asking your son about his day (at dinner, at bath time - whenever it suits - but make the time to show interest), but accept that at first you're most likely going to hear about what he had for dessert or that they watched a film (which may have only been a 10 minute clip they then went on to discuss as a class, but that will be glossed over).
Your son will learn from his friends, from his teachers, from his coaches/ instructors at clubs, from field trips, from family friends and relatives and his own mistakes - it's not just down to you!
The most important job is to encourage him to be positive about going to school and learning. Oh and offering hugs as needed.