This is only a sample of the full pack that is available in my store for $6. Addition and subtraction are the majority of what children learn for K and 1st grade math. You can go through this packet with this age level in a matter of weeks. This will make any teachers job easier as everything is organized in this packet and children can move on after they master these skills. I designed this product in effort to make learning addition and subtraction a little more fun and interesting. Children use the little picture cards to create the math problems that are given to them on the house worksheets. I personally laminated the houses so that my son could use them over and over until he masters them. Realistically a child will only need to do each card 3 times and will only need to use the puzzle cards the first time through. You may find that they really enjoy making up their own math problems. This is a much more fun and interactive way to learn these skills. I guarantee it will be a hit with any Kindergartner / 1st grader. All of my sets that I make are super colorful and interesting to show children that learning is lots of fun and it is applied to things that we do in our everyday life. If you have any questions or comments please feel free to send me a message and I will get back to you as soon as I can. Also, please leave any feedback on my products that you can. I hope you enjoy this packet as much as we are!