Hit and miss

We have gotten 2 of the preschool boxes (age 3-5) and we liked one but the other was not at all age appropriate. The human body box could have been fun but instead it had activities that were impossible for my 4 year old to do even a little. One activity (the 5 senses) was pretty fun but making an articulated hand and labeling all of the organ systems are more appropriate for middle school aged kids. I know that preschoolers have a wide range of fine motor and cognitive skills (I was a preschool and kindergarten teacher) but this was comically out of touch with what kids can do.