I strongly believe that you should plan your own lessons to suit your children's needs. Ever since I began teaching ICT I've planned every single one of my ICT lessons and I'm proud of it.
For nearly every subject, there are commercial schemes available for schools to purchase which provide comprehensive lesson plans for teachers to follow. Yes they provide an immediately available set of lessons but they take away the creativity and excitement from topics, as well as likely costing schools hundreds of pounds of their precious funds to buy.
To engage your children and support their development it's vital that you share your enthusiasm and passion with them. This can only be achieved if you plan your own units of work and lessons to teach them which are matched to their individual needs.
Of course gain inspiration and borrow ideas from others - I'm merely advocating the benefits of not following published schemes to the letter so you can create your own exciting, if not 'outstanding', lessons to inspire your children.
It genuinely shocks me the amounts of money that some schools are willing to part with to do the job which their staff should be qualified enough to do for themselves.
Please take a moment to think about how worth it some commercial schemes are before you part with money - would planning lessons for yourself be more: appropriate, effective and even more interesting? Your pupils only have one chance at going through the education system and they therefore deserve the best.