Dr. Johnson's contact information
clifford.johnson@aultman.com »
Logic/Math Challenge
Logic Challenge Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. »
Logic/Math Challenge
Logic challenge There are 3 light bulbs in the attic, and three light switches in the basement. You need to figure out which light switch controls »
Videos
Videos to watch Prime numbers: What does it mean to be a prime number? Let's progress though some whole numbers and ask ourselves if »
Videos
Videos to watch Averages: Introduction to averages and algebra problems involving averages. [https://www.khanacademy.org/video/averages?utm_campaign=embed] Multiple rates word problem: Sometimes »