Surface Area of a circle – Orange activity

For this activity, the goal was to find a formula for the surface area of an orange. First, we took the orange and cut it in half. That give us a circumference of the orange. We then traced it onto a big piece of paper as many times as we could. Then, we peeled the orange and took small bits of the peel to fill the circles as many times as we could. We could fit the orange peels into 4 full circles. The formula…

Garibaldi Lake Task

Picture: https://commons.wikimedia.org/wiki/File:Garibaldi_Lake_and_Mount_Price.jpg For this task, we must find an about volume for Garibaldi Lake. We know the surface area which is 9.94km2 and the average depth is 119m2. You want to start of with conversions. We can make everything in meters.  9.94km      x       1000m        =     9940m 1m                    9.94km  9940 m         x     1000 L          =     9940 000 L 1L                        1m 9940 000 L x 119 m = 1 182 860 000 L   The volume will be 1 182 860 000 L 1 L of water =…