The present and absence of macroinvertebrata in the river can be used as bioindicator to determine its water quality. The macroinvertebrata comprises from anggang-anggang dan kumbang air that need clean water to live to worms and leeches that are able to live in dirty and polluted water.

The water quality monitoring by using macroinvertebrata is called biomonitoring and these macroinvertebrata are called bioindicators. This guidebook is an important guidebook for facilitators (or teachers) and students who are interested in doing the river biomonitoring.

Environmental education (EE) has increasingly become our concern. We believe that EE expansion on communities could minimize the rate of nature destruction. At least, the community knows the reason of nature conservation, so they can choose which action they are going to do. School is the right option to start EE, since almost everybody go to school. Then, the teachers need to know about EE, so they can deliver it to their students.

This modest book contains nine topics of environmental education activities with various methods. Teachers and other educators, who are looking for alternative methods in delivering environmental education activities for students, are the main audiences of the book. They vary from primary school teachers to secondary school teachers. It is hoped that this book will increase the creativity of teachers and students. So, don't be afraid to teach the students in different way!

The issue of 'Education for Sustainable Development' (UN) is the main theme of the United Nations to promote sustainability through education for 10 years.
Without intending to patronize anyone, this module tries to introduce the above issues are minor. This module is aimed at teachers and other educators.The contents of the module presents more of a participatory learning methods. In these methods, educators act as facilitators, trying to give as many opportunities to students to engage in activities.

Module consists of three parts, the first is a famous illustration titled "If this world with a population of a village of 100 people", written by kayoko Ikeda. This illustration is the key to open our minds and take us to the issue of UN. The second part is a list of terms frequently used in the issue of UN. And the last part is collection methods that can be used by educators within and outside the classroom to enhance students' critical thinking.

A river is an important fresh water ecosystem for life, especially for maintaining the water cycle. The existence of certain macroinvertebrates in a river is proven as an indicator for the river's health. Is the river clean and healthy? Is the river polluted?
This is a guidebook for river biomonitoring, especially for highschool students. What animals are living in a river? How to find out its water quality? A story is used in this guideline to attract the audience as well a make them easily understood.

Coral reefs is a unique ecosystem, which consists of corals, fishes, sea plants and other biota. Coral reefs play important role in balancing life, both the environment and human being.
This book introduces what coral reefs is, its types, function, reproduction system, its threats and how to take action in conserving the coral reefs. The book's layout is completed with pictures so that it makes an easy understanding for the readers.

Mangrove trees live in the coastal area and they are able to adapt in muddy soil or tidal area. Mangrove plays important roles in keeping the nature balance for environment and human being.
This book introduces what mangrove is, habitat, function, its threats and how to take action in conserving it. This book that is completed with illustration makes it easy to understand.

Sea turtle is an animal that is able to swim across oceans. Sea turtle is endangered species and we have to protect and conserve it.
This book explains the sea turtle habitat, reasons of its extinction and how to take action in conserving this species. This book is enriched with illustration that makes it easy to understand.

Garbage is everywhere. Human creates garbage. Approximately 2000-m3 garbage is transported to the final dumping area every day in Denpasar. We can imagine and feel the negative impacts of garbage on social, economic, environmental and health aspects. Therefore, we have to solve the problem immediately, without waiting for other people to initiate. We have to start from ourselves and further continue to our family.

This guidebook shows a simple guide to understand the waste types, waste separating, recycling paper, composting, designing small garden, medicinal plants, healthy food and some eco-friendly tips. The small size makes the book handy, the simple language makes it easy to be understood, which completed by appropriate illustrations. Therefore, this guidebook will make the readers easy to practice. All of us have to be responsible of our waste.