A great activity for students learning addition, or as a review for older students. Students develop their addition skills but also their inductive reasoning skills. This puzzle contains addition problems in the form of a 4 x 4 grid where students match up the answer next to the problem. Roman numerals are included in the middle of the pieces so that a teacher can quickly check if the student is correct.
This is considered a medium difficulty puzzle because the end and corner pieces aren't given. All sixteen pieces have four numbers on them and the students have to figure them out based on inductive reasoning. Also, some of the answers are repeated making the puzzle slightly more difficult.
Two versions of the puzzle are included. One puzzle does not contain and problems or sums around the outside of the puzzle, making construction easier. The other puzzle does contain problems and sums around the outside of the puzzle, allowing for students to use their inductive reasoning skills to complete the puzzle, but also making it more difficult. The two versions of the puzzle allow for differentiation amongst your ability groups.
I have found these puzzles to be a great tool in my classroom, and have created them for a variety of topics. Students don’t realize that they are solving up to 24 problems when completing them. What has been successful for me is to give points for correctly completing the puzzle, and extra credit points for the first few groups that finish.