Passage Summary: Schools are using computer programs instead of real science labs, but the author thinks this is a mistake because students won't know how to use real tools when they get to college.

Conclusion: The trend of replacing physical laboratory experiments with computer simulations in schools should be stopped.

Reasoning: Replacing real labs with simulations means students graduate without the practical skills needed to operate actual laboratory equipment in a university setting.

Analysis: The author's argument hinges on the assumption that the primary value of science education is learning to handle physical tools. To weaken this, we should look for an answer that suggests the benefits of simulations outweigh the loss of manual equipment skills. For instance, if simulations allow students to learn complex scientific concepts more effectively than messy, real-world labs, the author's 'stop the trend' conclusion loses its force. Alternatively, an answer showing that university science doesn't actually require those specific manual skills would also undermine the reasoning.