Review on Learning Resources Mathlink Activity Assorted by Leroy Jacobs

Not as good as Learning Resources Mathlink Bricks, Homeschooling, Educational Counting Toy, Math Dice, Early Math Skills, Math Manipulation, 100 Dice Set, Ages 5+ I originally purchased the set above and it was wonderful. Sturdy, nicely assembled, does the job right? I just ordered Mathlink Builders, a COMPLETELY different plastic. The connecting blocks are not strong, they twist when you fold them, you can't just push them together (6 and 7 years) and they are a bit bigger. The last thing I need to teach is for the kids to get upset and "done." I didn't expect them to be like this. Items can be used, but with help, not alone.