Final answer:
After implementing a plan to solve a problem, the group should evaluate the results, analyze the effectiveness of the solution, and make necessary adjustments or document the strategy for future reference.
Step-by-step explanation:
After a group implements their plan to solve a problem using the problem-solving model, the next step they should take is to evaluate the results. This involves checking the outcome to see if the problem has indeed been resolved, and analyzing the effectiveness of the solution. If the problem is not solved or only partially solved, the group may need to go back to an earlier stage of the problem-solving process, such as redefining the problem, exploring alternative strategies, or re-implementing a modified plan.
During the evaluation phase, one should identify knowns and unknowns, and check if the outcome is reasonable by comparing it to expected results. If necessary, gathering feedback and making adjustments is important to ensure the problem is resolved satisfactorily. This reflection also offers valuable insights for future problem-solving endeavors. Moreover, if the solution is effective, it's also beneficial to document the steps taken and the strategy used for reference in solving similar problems in the future.