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Students will consider how much waste they personally and as a class generate each day, and the portion that is recyclable and non-recyclable by conducting a “waste audit” at home. They will analyze their personal contribution to the waste stream and develop ideas on how they can reduce the amount of waste they make. Using the data collected from their waste audits,

students will calculate the amount of recyclable and non-recyclable material they produce in a day.

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Display the lesson slides for the class and create a discussion about what they already know about recycling and introduce the concept of an audit.

Print out the “YES/NO” handout and the “Waste Audit Form” handout.

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Lesson Prep & Curriculum Alignment

Prep time: 10 – 15 minutes

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Prepare a standard home scale to weigh items students will bring to class.

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Key Learning Outcomes and Curriculum Alignment:

  • Science - Earth and Human Activity: Communicate solutions that will reduce the impact of humans on the land, water, air, and/or other living things in the local environment. Things that people do can affect the world around them. But they can make choices that reduce their impacts on the land, water, air, and other living things.
  • English Language Arts and Literacy: Participate in collaborative conversations with diverse partners about topics and texts. Follow agreed-upon rules for discussions. Use words and phrases acquired through conversations, reading and being read to, and responding to texts.
  • Mathematics: Make sense of problems and persevere to make sense of them by counting and multiplying to reach a conclusion on the quantity of something.

SDG Alignment

Lesson Prep & Curriculum Alignment

Prep time: 10 – 15 minutes

Lesson plans are designed to be flexible and responsive to the evolving needs of your classroom. Lessons are editable and customizable to meet the different individual student and classroom contexts. A PowerPoint version with teacher instructions and a printable PDF lesson are available for download. 

Flexible and adaptive lesson

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The Lesson

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Assess students' understanding of recycling, its benefits, and the impact on the environment by not recycling. Display the “YES/NO”, “1,2,3 Steps”, and “Best Practices” slides to assess their understanding of how to effectively recycle and how much waste we produce each day.

Lesson duration: 25 - 30 minutes

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Display the lesson slides and introduce the concept of the waste stream through a guided discussion about the flow of our waste.

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Introduce the concept of an audit and tell students they are going to conduct a one-day waste audit at home to find out:

  • how much their family recycles?
  • how much trash they produce?
  • how much of the trash they produce could be recycled?

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Depending on your school’s current recycling practices, you might wish to discuss the possibility of sharing their findings with the school and starting or improving a recycling program.

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Prepare the PowerPoint presentation

When you are ready to present the lessons to your class click on Slide Show on the top menu bar then select Presenter View. In Presenter view, you can see your notes as you present while the audience see only your slides.

The notes appear in a pane on the right. The text should wrap automatically, and a vertical scroll bar appears if necessary. You can also change the size of the text in the Notes pane by using the two buttons at the lower left corner of the Notes pane.

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YES

NO

Glass jar

PET Plastic bottle

Metal can

Cardboard box

Banana peel

Dirty napkin

Light bulb

Juice box

Toys

Plastic bag

Pencil

Shoes

Garden hose

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YES

NO

Always recycle:

Never recycle:

Glass jar

PET Plastic bottle

Cardboard box

Metal can

Banana peel

Dirty napkin

Light bulb

Juice box

Toys

Plastic bag

Pencil

Shoes

Garden hose

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How do we prevent waste leakage into our environment?

Practice The 3 Steps to Recycling

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Know what you can recycle.

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Empty, clean, and dry before putting in the bin.

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Put recyclables into the correct recycling bin.

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What is your Waste Hero’s Message to Inform and Inspire?

If your recycling container smells, it is contaminated

If you can poke your finger through it,

do not recycle it

Never recycle anything smaller than an ID card

Separate

combined materials

Keep your recyclables dry – less than a teaspoon of liquid

Recycling Best

Practices & Tips

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Recycling Tips we can share to inspire others to recycle

Some Countries have Direct Return Schemes (DRS), these are return stations where both PET plastic bottles and glass bottles can be return.

Depending on the country and DRS in place Glass and PET Plastic may have to be returned separately.

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DRS tip

Find the DRS or Return Machine for your PET bottle, glass bottle or can.

Recycle items into the return stations in a store or a recycling centers.

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How much waste does the average person create each day?

4 bundles of bananas

= 4.5lbs/2kg

Small dog = 4.5lbs/2kg

Sack of potatoes = 4.5lbs/2kg

2 full rotisserie chickens = 4.5lbs/2kg

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What is the waste stream?

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We clean, separate, and place our recyclables at home and at school for pick up.

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What is the waste stream?

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Recycling trucks pick up and deliver your recyclables and drop them off at the recycling facility.

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What is the waste stream?

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Assembly line workers hand separate all the items delivered. They remove any food, plastic bags and other items that do not belong.

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What is the waste stream?

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Machines use high technology to further sort and separate paper, cardboard, plastic

and metal.

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What is the waste stream?

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Once these 4 materials are properly separated, the items are flattened and packed into bales. Bales look like giant blocks of recyclables.

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What is the waste stream?

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These bales of recyclable material are sold to companies who will process these materials into new products.

$

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Class Activity: 1 Day Waste Audit

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What is an audit?

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Steps for the Day

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Home Audit

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Step

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Check with your parents to pick a day for the home waste audit. The day of the audit, make sure to choose 2 containers for non-recyclable waste and recyclable waste, and make sure both are empty before you begin.

Non-recyclable Waste

Recyclable Waste

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2

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Step

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After collecting the last bit of waste, set out three trash bags to sort the three types of waste collected: (1) Recycling, (2) Food Waste, (3) Non-recyclable items. Wear protective gloves!

Recycling bag

Food waste bag

Non-recyclable bag

!

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Step

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As you carefully go through the waste containers separating your waste into the three bags, record on your “Waste Audit Form” the individual recyclable items you collect and how many.

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Step

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Bring your three bags to school. Using a standard scale, record the weight of each individual recyclable and the total weight of each of the three bags.

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Step

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How much total waste did the class create? Now calculate how much total waste you are likely to create in a week (7 days), a month (30 days), and a year (365 days).

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