Please find attached a PowerPoint you may find helpful to deliver this content to your classes. Feel free to modify to suit your cohort. This is my PP from 2019 with some changes.
Remember that although the KK mentions global food security, advice from VCAA is that the focus should be Australia. The PP includes a number of embedded files with initiatives that are currently happening in Australia to increase food security.2020 Week 1 online lesson What is Global Food Security