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Using water wisely

About this lesson

Students gain an understanding of where water is wasted and create a persuasive poster to educate others to save water.

Year level: 3, 4

Theme: Water conservation

Learning objectives

Students can:
  • explain why we should conserve water at home, at school and in the community
  • understand where water is wasted at home, at school and in the community
  • describe ways in which they can save water e.g taking a shorter shower
  • plan, draft and publish a persuasive poster on how to save water.

Curriculum links


  • Living things, including plants and animals, depend on each other and the environment to survive ACSSU073ACSSU044
  • Science knowledge helps people to understand the effect of their actions ACSHE062; ACSHE051


  • Listen to and contribute to conversations and discussions to share information and ideas and negotiate in collaborative situations ACELY1676
  • Use interaction skills, including active listening behaviours and communicate in a clear, coherent manner using a variety of everyday and learned vocabulary and appropriate tone, pace, pitch and volume ACELY1792; ACELY1688
  • Plan, draft and publish imaginative, informative and persuasive texts demonstrating increasing control over text structures and language features and selecting print, and multimodal elements appropriate to the audience and purpose ACELY1682ACELY1694

Things you will need

Lesson description


  • Make a class list on how we have used water since getting out of bed.
  • Add to the list all the ways that you use water at school.
  • Do a think/pair/share about all the ways we use water for sport and entertainment.
  • Discuss how we all sometimes waste water and how we can use water more wisely.<
  • View the Water conservation video (0:46) and discuss.
  • Add to the list all the other places we use water at home.


Part 1 – Don’t waste water

  • Get students to complete the Don't waste water – part 1 activity sheet to identify where the family members in the picture are wasting water.
  • Ask students to shade the places where the water is being wasted in blue.

Answers to the activity sheet 

The places that are easily identifiable in the activity sheet are:

  • the bath is full
  • water is leaking in the laundry
  • the tap has been left running while the child is brushing his teeth
  • water is being wasted in the shower as the person has taken a very long shower
  • the kitchen tap is leaking
  • the sprinkler is watering the path
  • the car is being washed in the driveway with the water going down the drain
  • discuss the 7 places water was wasted and discuss how they are wasting water
  • ask students are there any other places where this family could waste water?
  • ask each student to name 1 thing they will do to save water tomorrow.

Part 2 – Make a poster to educate others to save water

  • Talk through the information contained in the teacher background section.
  • Have students design a persuasive poster to educate others on how they can save water at home, at school or in the community.
  • Model on the board how to design a persuasive poster using persuasive language, appropriate language for their audience, pictures, use of images.
  • Outline the success criteria for a successful poster.
  • Students plan, draft and publish their posters.

Reflect & summarise

  • Students present their posters to the class and talk through them.
  • Other students listen and ask the presenter questions.
  • Display all the posters in the classroom along with the success criteria.  Students peer review posters against the success criteria, using the 2 stars (2 good things) and a wish (1 thing to improve) method.

Extension activities

Teacher background information

Water use at home

Households use over 50% of their total water inside the home. Making simple changes to our habits can save lots of water. Around 40% of all household water is used in the garden.

Each year the average household uses more than three swimming pools worth of water in the laundry, kitchen and bathroom:

  • 1 swimming pool is used for the toilet
  • 1 swimming pool is used in the bathroom
  • ¾ swimming pool is used in the laundry
  • ½ swimming pool is used in the kitchen.

Ways to save water at home

Why conserve water?

  • Plants, animals and humans cannot survive without it.
  • Australia is the world’s driest inhabited continent.
  • We are vulnerable to climate change.
  • Our population is increasing and so is the demand for water.
  • Our use of water sources must be sustainable.
  • If we reduce our water use, we can also reduce our energy consumption.
  • If we reduce our water use, we can delay having to build costly new water supply sources and this helps reduce the impact on the environment.


Did you know?

People who regularly keep the tap running while they clean their teeth waste almost 11,000 litres of water every year.

Key vocabulary

  • Conserve: Use cautiously and frugally
  • Precious: Of great value or high price
  • Save: To avoid unnecessary waste or expense
  • Wastewater: Used water