Right now, just after sunset, in the southwest sky, you can check out the planets of Jupiter and Saturn as they get closer and closer to each other. They are millions of miles apart but they appear to be very…
December 21, 2020 – Great conjunction
Tag: rate of change
Really big shoe
Brian and his son were doing some shopping when he found this shoe. Egad! Could that be someone’s real shoe? In this activity student need to use a shoe size chart, patterns or linear modeling to try to figure out…
Measuring sea level
What does this gizmo do? We’ve given students a diagram of what the interior of this mechanism contains and asked them to try to decide what its purpose must be. Then we’ve given them the data that was collected from…