Please Help! Sec2 NA

I’m looking to buy assessment books and exam papers for all subjects. I went to popular and I could hardly find any good books for NA. All the books that see are mostly for Express.
Please help to answer my queries:
1. What is "Special" in Special/Express?
2. Where can I find good assessment books for Sec2 NA?
3. Where can I get the sample question papers with solutions (Popular has only for Express)?

How to prepare for SOTA Visual arts?

Someone who got into SOTA Visual arts, please advice on how to prepare the portfolios.

doratheexplorer:

My son has been studying really hard since p1 till now where he is at p4. Despite all the hardwork his grades have consistently been sitting at 70-75 marks range for his math, science, mt and eng. it is not only disheartening for us but it is also breaking my son's confidence that he is capable of doing better. I am not sure if we parents are not teaching him correctly or is it the school marking system of being strict. I am now desperately seeking/ looking for help from a tutor. Someone who can teach him and guide him thru the correct answering techniques esp for science sect b. He is going p5 next year, I have my dd who is equally struggling hard and to add more stress she is entering p3 with science. I would greatly appreciate if anyone could help me recommend a current primary school teacher esp for science or perhaps a very good full time tutor who can inspire, guide and motivate my kids thru this learning journey. Thank you

I'm facing the same problem with my daughter. We really put a lot of hard work to understand the basics ..and we study really well before the exams..but she only scores 70-75 in all the subjects.
She is in P5 this year.
Kindly suggest some good assessment books for
1. English
2. Maths
3. Science.

Also, please help to suggest some good tuition centres around sengkang,hougang,buangkok and punggol.