Connecting to prior knowledge
Before showing the book cover, ask students to brainstorm what the title Desert Lake means to them. Prompt by asking: How could something be a desert and a lake?
Invite students to sketch their representations and then, preferably using the big book edition, read through the whole book.
Re-read making particular note of how the desert becomes a lake and vice versa.
Cultural understandings of the site that link to the title of the book
Pause to explore the Arabana people, who are the Indigenous people of the region.
Background information for the teacher can be found here on page 561. In summary, part of how the Arabana people understand water is by its absence. In contemporary terms, this means that there are many sites that are ‘water’ sites, but which at present have no water in them. There are two types of ‘absent’ sites – firstly, there are sites where living memory charts a change in water flow: ‘when I was growing up this used to flow over and gush down like waterfall, no more now…’ (Marree Respondent 1 2015, cited in Nursey-Bray and the Arabana Corporation 2015). The absence of water in these cases is usually attributed to current impacts such as mining or due to seasonal and climate variability.
The other type of ‘absent’ water sites are those regions that are culturally significant, but which are water sites from millennia past. For example, ‘we were taken to ‘waterless’ sites, which were areas that had numerous shell fossils and other fossils reflecting pre-existence of a marine environment. In these areas there were many cultural artefacts such as grinding stones, also indicating “long dure” Arabana existence‘ (Nursey-Bray et al. 2013).
Hence, current important water sites for the Arabana people also comprise of areas where water was, but is no longer, both in living and traditional memory.
Australian Landmarks with Aboriginal and European Place Names
The desert lake in this book has two names. Kati Thanda is the Aboriginal name and Lake Eyre is the name given by European explorers. Kati Thanda was recognised in 2013.
- Invite students to identify other natural landmarks with Aboriginal and European place names e.g. Uluru/Ayres Rock, Kata Tjuta/The Olgas, Purnululu/Bungle Bungle Range, Kakadu and others. Locate these, including Kati Thanda-Lake Eyre, on a map of Australia.
- Discuss the idea of sacred sites and special places for Indigenous peoples. The closure of Uluru for climbing in 2019 might be discussed briefly.
- In small groups, have students sketch or visually represent some of the landmarks onto paper then cut out and attach to maps of Australia (alternatively, a large map could be used to which each group attaches one landmark). Label each landmark with the Aboriginal and European names. (Although neither book clearly references Kati Thanda-Lake Eyre, use Are We There Yet? by Alison Lester and To the Top End: Our Trip Across Australia by Roland Harvey as springboards.)
Exploring the text in context of our community, school and ‘me’
Salt, water, evaporation and heat
After reading about the evaporation of Kati Thanda-Lake Eyre, students may be interested in emulating the effect of how evaporation could effect a local pond or waterway, as stimulated by the following activities:
- Water Cycle Brainstorm: Identify and view photographs or visit a local pond or lake (or other waterway). Keeping their local waterway in mind, students imagine and brainstorm what could happen to it if it is moved to a desert environment such as where Kati Thanda-Lake Eyre is situated, facing extreme heat, evaporation and salty water. This demonstrates part of the water cycle. While the website is designed for older students, a diagram can be viewed at the Greenhub website, in the Water for Life section, page 6.
- Salt Crust Experiment: Students re-read the description of the salt crust on page 27 of Desert Lake. To understand what the salt crust is and to replicate it, students complete the following experiment. Dissolve table salt (or baking soda) in water. Heap onto baking paper on a tray or plate. Allow time for the water to evaporate. Observe what is left after the water evaporates (the salt crust). Students could repeat with two samples: one pile of salt dissolved in water on a tray placed in the sun or a heat lamp, the other placed on a tray in the shade. Compare the different results.
Retain these so students can use the salt crust to help form models of the lake in the Responding section of this unit.
(ACELY1699) (EN3-8D)
Rich assessment task
Visit Kati Thanda-Lake Eyre
- Ask students to imagine they have the opportunity to visit Kati Thanda-Lake Eyre. On the map of Australia used for the earlier activity on Australian landmarks, ask students to label their school or closest city or regional centre. Students draw a line to link their locality with Kati Thanda- Lake Eyre.
- Spend a few minutes looking at photographs and images of Kati Thanda, which may add some curiosity about the lake.
- In pairs, students plan what they will do when they arrive at Kati Thanda-Lake Eyre. Ask them to focus on the book Desert Lake for ideas, but they can also use the additional resources provided at the More Resources section located below (press the More Resources button). For their visit, they decide if the lake will be a desert, a lake or both. When they arrive and during their time there, they could set up a tent, go for a walk, look at the salt crust or search for the plants and creatures seen in Desert Lake. They could take photographs and sketch what they observe. Students can document their ‘visit’ by making a comic of three or six panels, using Comic Creator or other comic software.
Optional: Students could use bitmoji avatars to place themselves at Kati Thanda-Lake Eyre and show what they are doing there.
(ACELY1704) (EN3-2A)