We've used logic workbooks from The Critical Thinking Co for Jake, and he really enjoyed them. I used them as a warm up for his formal logic course to grease the thinking wheels.
Well, you may not be aware of this but they offer a variety of materials including science, language arts and history. As part of the TOS Crew we received Language Smarts, Level C which is for 2nd grade. This is a hefty 320 page colorful workbook.
Hank has loved using this workbook and asks to do it every day. I think it's a nice product but it's not something he can do on his own. We've completed about 50 pages so far and to date there haven't been 'lessons' but worksheets that assume he knows what they're talking about. That meant I needed to remember what a palindrome is, explain it to him and walk him through a couple of the problems before he was off and running - and he can do the work on his own at that point, but it required that extra time and effort on my part.
Like I said, Hank has really enjoyed this, and I think it is definitely worth a look. You can buy it for only $39.99.
Be sure to read reviews written by other TOS Crew members.
*I received this product for free so that I may give my opinion of it. No other compensation was received.