Lesson name	Disappeaing Act: Disposal and recycling of waste materials.
Level /Grade	Grade 8
Overview	Recycling of materials is a great way to reduce the waste from various areas. Land fills can breathe better which otherwise are filled with toxicity . Recycling of biodegradable materials can give rise to beautiful transformations.
Learning standards	CBSC standards. The students are made to know about different types of waste in and around us. The students are then made to analyze the substances and then separate them into biodegradable and non-biodegradable substances. The students are then brainstormed to give inputs on how the materials are converted into different products.
Problem statement	The important facts students need to know How is disposal become a perennial problem linked to pollution? The ground water also gets polluted What are some of the ways to address trash? The students are brainstormed with their ideas to address this problem.
Learning objectives:	Recycling and stems are very important for sustainable ecosystems and to leave a better world for future generations. Recycling is a social responsibility for all citizens for a sustainable society. Understand that the recycling of biodegradable substances into new products.
Materials	Students will bring the substances which are present in their own houses.
Background Information:	No simple, single solution exists to solid waste management. The current thinking is that it should be an integrated, seven-step process, including the 3RC process (the first four steps), incineration (waste-to-energy), landfills and incineration (no energy production). It is ideal to combine the first five of these in such a way as to eliminate or at least drastically reduce the amount of waste.
EDP	Engineers are involved in all steps of integrated-waste management. They use smaller amounts of materials to package products as discussed in the relevant activity
Pre session (Teacher and material readiness)	Students can read through the article to understand what can be created through recycling . https://sdw-blog.eun.org/2021/04/23/recycling-from-waste-with-stem/ Composting – Nature’s Disappearing Act. -read the activity. It’s all In the Package, from Teach engineering
Process with time allocation:	The students are made to get different types of trash materials which are present at home. The students are divided into groups first to segregate them into recycled materials and non–recycled materials. Using the materials, the children will make various types of crafts depending upon their thinking.
Stem Connect	Science: Understanding the importance of waste management . Engineering : The design process. Mathematics : Measurements of the design process . Technology: The biodegradable substances are recycled into other useful products.
Results of the lesson	Critical thinking: students realize the problems and find the solution through discovery. 2-Creativity and Cooperation: Students learn to use their creativity, thoughts and imagination to reach a goal and solve the problem. 3-Communication: While applying the learning scenario, they share their thoughts, designs, and research results. They use and develop their expression and communication skills while introducing their materials. 4-Curiosity, questioning: Students strengthen the aspects of curiosity, critical thinking, asking questions, observing and evaluating.
Evaluation	These learning scenarios and activities saw that students could produce solutions to even a global problem with their strengths. They realized that waste is recycled with different disciplines. They discovered that they could be socially responsible individuals in society. They learned by experiencing and observing that project-based learning develops many aspects.
Assessment	Ask students to define the term biodegradable. Ask students to explain what a dump is. Ask students to explain what a compost pile is. Ask students to describe what happens to their garbage after it is thrown away. Ask students to identify what types of materials are biodegradable, and what types are not. Bring in a number of new items of trash. Ask students to identify each as biodegradable or not biodegradable. This may be done individually or as a class.
Quick Quiz	Write down what 3RC stands for. (Answer: Reduce, reuse, recycle, compost.) Describe one way you can be involved in 3RC. (Accept all reasonable answers.) Describe how an engineer might be involved in one of the 3RC steps.