Compost Creators: Food Waste to Plant Power!
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Compost Creators: Food Waste to Plant Power!

KindergartenEnvironmental Science15 days
In this Project-Based Learning experience, kindergarten students become Compost Creators, exploring food waste and its transformation into plant power. Through hands-on activities, they investigate the impact of food waste, learn the composting process, and observe the benefits of compost on plant growth. Students design and implement waste-reduction plans, fostering environmental awareness and responsibility while developing observation, documentation, and presentation skills.
Food WasteCompostingPlant GrowthEnvironmental AwarenessWaste ReductionDecompositionSustainability
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Inquiry Framework

Question Framework

Driving Question

The overarching question that guides the entire project.What can we do with our leftover food?

Essential Questions

Supporting questions that break down major concepts.
  • What is food waste?
  • Why should we not waste food?
  • What can we do with food waste?
  • What do plants need to grow?
  • How does compost help plants?

Standards & Learning Goals

Learning Goals

By the end of this project, students will be able to:
  • Understand the concept of food waste and its impact on the environment.
  • Learn the process of composting food waste, including the steps and materials needed.
  • Understand the benefits of compost for plant growth.
  • Develop skills in collecting and sorting food waste.
  • Promote environmental awareness and responsibility.

Entry Events

Events that will be used to introduce the project to students

Worm Café Mystery

A mysterious package arrives: a mini worm farm! Students investigate what worms eat, how they live, and their role in making soil, sparking curiosity about composting.

Rotting Rainbow Reveal

Present a time-lapse video of colorful fruits and vegetables decomposing. Ask: What's happening? Where does it go? This visual spectacle introduces the concept of decomposition and its connection to composting.

The Case of the Missing Lunch

A classroom 'detective' story unfolds: Where did the banana peel and apple core go from yesterday's lunch? Students track the journey of food waste, leading to the discovery of composting as a solution.
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Portfolio Activities

Portfolio Activities

These activities progressively build towards your learning goals, with each submission contributing to the student's final portfolio.
Activity 1

Waste Watchers

Students begin by observing and documenting the food waste generated in their own homes or school environments. They will categorize the waste and reflect on its potential impact.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Observe and collect food waste over a day.
2. Categorize the waste (e.g., fruits, vegetables, bread).
3. Draw or write about what they observed.

Final Product

What students will submit as the final product of the activityA visual diary of collected food waste, categorized and annotated.

Alignment

How this activity aligns with the learning objectives & standardsAddresses the learning goal: Understand the concept of food waste and its impact on the environment.
Activity 2

Compost Creation Station

In this activity, students actively participate in creating a mini-compost bin. They layer different materials, and observe the decomposition process.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Layer green (food scraps) and brown (leaves, paper) materials in a bin.
2. Moisten the layers and mix gently.
3. Observe and draw the process of composting in steps.
4. Measure the height/volume of the compost using non-standard units(e.g. blocks,cups).
5. Explain the composting process orally.

Final Product

What students will submit as the final product of the activityA mini-compost bin, a drawing of the composting process and oral explanation.

Alignment

How this activity aligns with the learning objectives & standardsAddresses the learning goal: Learn the process of composting food waste, including the steps and materials needed.
Activity 3

Plant Power

Students use the compost they created to grow a small plant or seedling. They compare its growth to that of a plant grown without compost.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Plant seeds or seedlings in two separate pots: one with compost, one without.
2. Water and care for both plants equally.
3. Observe and record growth differences over several weeks.

Final Product

What students will submit as the final product of the activityTwo plants (one grown with compost, one without) and a comparative growth chart.

Alignment

How this activity aligns with the learning objectives & standardsAddresses the learning goal: Understand the benefits of compost for plant growth.
Activity 4

Waste-Free Heroes

Students design and implement a plan to reduce food waste in their classroom or home. They present their plan and its results to the class.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Brainstorm ideas to reduce food waste.
2. Implement the plan for a week.
3. Present the plan and its results to the class.

Final Product

What students will submit as the final product of the activityA presentation on their waste-reduction plan and its impact.

Alignment

How this activity aligns with the learning objectives & standardsAddresses the learning goals: Develop skills in collecting and sorting food waste and Promote environmental awareness and responsibility.
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Rubric & Reflection

Portfolio Rubric

Grading criteria for assessing the overall project portfolio

Kindergarten Composting Portfolio Rubric

Category 1

Waste Watchers: Observation and Documentation

Assessment of the student's ability to observe, collect, categorize, and reflect on food waste.
Criterion 1

Observation and Collection

Ability to observe and collect various types of food waste.

Exemplary
4 Points

Consistently and accurately observes and collects a wide variety of food waste, demonstrating a keen eye for detail.

Proficient
3 Points

Observes and collects several types of food waste with accuracy.

Developing
2 Points

Observes and collects a limited variety of food waste with some inaccuracies.

Beginning
1 Points

Struggles to observe and collect food waste, showing limited awareness of different types.

Criterion 2

Categorization

Ability to sort food waste into appropriate categories (e.g., fruits, vegetables, bread).

Exemplary
4 Points

Accurately categorizes all collected food waste and provides clear explanations for the categorization choices.

Proficient
3 Points

Categorizes most of the collected food waste accurately.

Developing
2 Points

Categorizes some food waste accurately, but with inconsistencies.

Beginning
1 Points

Struggles to categorize food waste and demonstrates limited understanding of different categories.

Criterion 3

Reflection

Ability to draw or write about observations and reflect on the impact of food waste.

Exemplary
4 Points

Provides a detailed and insightful reflection on the impact of food waste, demonstrating a strong understanding of its environmental consequences.

Proficient
3 Points

Reflects on the impact of food waste with some detail and understanding.

Developing
2 Points

Provides a basic reflection on food waste, but with limited detail or understanding.

Beginning
1 Points

Struggles to reflect on food waste or its impact, showing minimal awareness.

Category 2

Compost Creation Station: Active Participation

Assessment of student engagement and understanding of the composting process through hands-on participation.
Criterion 1

Layering and Mixing

Ability to correctly layer green and brown materials in the compost bin and mix them appropriately.

Exemplary
4 Points

Layers green and brown materials perfectly, demonstrating an understanding of the correct proportions and mixing techniques. Provides clear rationale.

Proficient
3 Points

Layers green and brown materials correctly with minimal guidance.

Developing
2 Points

Layers green and brown materials with some errors, requiring some guidance.

Beginning
1 Points

Struggles to layer green and brown materials correctly, requiring significant guidance.

Criterion 2

Observation and Documentation

Ability to observe the composting process and document it through drawings.

Exemplary
4 Points

Creates detailed and accurate drawings of the composting process, capturing key changes and stages over time. Includes labels and descriptions.

Proficient
3 Points

Draws the composting process with reasonable accuracy, showing the main stages.

Developing
2 Points

Draws the composting process with some inaccuracies or missing stages.

Beginning
1 Points

Struggles to draw the composting process, showing limited understanding of the changes taking place.

Criterion 3

Oral Explanation

Ability to explain the composting process orally.

Exemplary
4 Points

Provides a clear, concise, and accurate oral explanation of the composting process, using appropriate vocabulary.

Proficient
3 Points

Explains the composting process orally with reasonable clarity and accuracy.

Developing
2 Points

Explains parts of the composting process orally, but with some confusion or omissions.

Beginning
1 Points

Struggles to explain the composting process orally, showing limited understanding.

Criterion 4

Measurement

Ability to measure the height/volume of the compost using non-standard units.

Exemplary
4 Points

Accurately measures compost height/volume and keeps track of changes over time to show decomposition. Provides clear rationale for measurement choices.

Proficient
3 Points

Measures the compost height/volume using non-standard units.

Developing
2 Points

Attempts to measure compost height/volume but struggles with accuracy.

Beginning
1 Points

Unable to measure compost height/volume even with assistance.

Category 3

Plant Power: Comparative Analysis

Assessment of student's understanding of the benefits of compost for plant growth through observation and comparison.
Criterion 1

Planting and Care

Demonstrates appropriate care for both plants (with and without compost).

Exemplary
4 Points

Consistently waters and cares for both plants appropriately, ensuring their optimal growth and health.

Proficient
3 Points

Waters and cares for both plants regularly and appropriately.

Developing
2 Points

Waters and cares for both plants inconsistently, with occasional lapses.

Beginning
1 Points

Rarely waters or cares for the plants, leading to neglect.

Criterion 2

Observation and Recording

Ability to observe and record growth differences between the two plants.

Exemplary
4 Points

Keeps detailed and accurate records of growth differences, using drawings, measurements, and written descriptions to highlight the impact of compost.

Proficient
3 Points

Observes and records growth differences between the two plants with reasonable accuracy.

Developing
2 Points

Observes some growth differences, but records them inconsistently or inaccurately.

Beginning
1 Points

Fails to observe or record any growth differences between the two plants.

Criterion 3

Comparative Analysis

Ability to compare and contrast the plants with and without compost.

Exemplary
4 Points

Clearly and accurately explains how the plant with compost grew better than the plant without. Uses evidence from their observations.

Proficient
3 Points

Explains that the plant with compost grew better, but does not provide reasoning.

Developing
2 Points

Attempts to describe the difference in plant growth, but the explanation is unclear.

Beginning
1 Points

Unable to describe the difference in plant growth.

Category 4

Waste-Free Heroes: Action Plan

Assessment of student's ability to design and implement a waste-reduction plan and present its results.
Criterion 1

Plan Design

Quality and feasibility of the waste-reduction plan.

Exemplary
4 Points

Develops a creative, feasible, and well-thought-out plan to reduce food waste, demonstrating a strong understanding of waste reduction strategies.

Proficient
3 Points

Designs a reasonable plan to reduce food waste.

Developing
2 Points

Designs a plan to reduce food waste, but it may be impractical or poorly defined.

Beginning
1 Points

Struggles to design a plan to reduce food waste, showing limited understanding of waste reduction strategies.

Criterion 2

Implementation

Effectiveness of implementing the waste-reduction plan.

Exemplary
4 Points

Implements the waste-reduction plan effectively, consistently adhering to the strategies and demonstrating a commitment to reducing waste.

Proficient
3 Points

Implements the waste-reduction plan with reasonable effort.

Developing
2 Points

Implements the waste-reduction plan inconsistently, with some lapses in effort.

Beginning
1 Points

Fails to implement the waste-reduction plan effectively.

Criterion 3

Presentation

Clarity and effectiveness of the presentation on the plan and its results.

Exemplary
4 Points

Presents the plan and its results clearly, concisely, and engagingly, using visuals and demonstrating a thorough understanding of the project.

Proficient
3 Points

Presents the plan and its results clearly.

Developing
2 Points

Presents the plan and its results with some difficulty, lacking clarity or detail.

Beginning
1 Points

Struggles to present the plan and its results, showing limited understanding of the project.

Reflection Prompts

End-of-project reflection questions to get students to think about their learning
Question 1

What was the most surprising thing you learned about food waste?

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Question 2

How did the plant in compost grow differently?

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Question 3

What part of making compost did you enjoy the most?

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Question 4

What was the most difficult part of reducing food waste?

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