User talk:197.155.228.230

November 2016
Hello, I'm Materialscientist. I wanted to let you know that one or more of your recent contributions to Lesson plan have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Materialscientist (talk) 13:09, 1 November 2016 (UTC)
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April 2019
Please refrain from making unconstructive edits to Wikipedia, as you did at Automotive engineering. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. Roxy, the dog . wooF 11:19, 9 April 2019 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.