Zachary kept reminding Aoife to change the batteries, even suggesting helpful tips like writing a reminder on a post-it, to ensure the batteries got changed. Over the course of a couple of days, both AA and AAA batteries were sourced and replaced.
Still, the model did not work. But Zachary was undeterred! He persisted in thinking through the problem and told Aoife to check that the switch on the sun was turned on - VICTORY! Zachary succeeded where Aoife had failed and the planets began their travels around the sun. The class discussed space and the solar system with renewed vigour and we all had Zachary to thank! Well done!