Acorn Grinding Station

BioTrek Curriculum for Acorn Grinding Station

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The Acorn Grinding Station

Within our native garden, large boulders mimic bedrock mortars where students learn to prepare food as the Tongva once did.  The Acorn Grinding Station at BioTrek emphasizes native California history for the younger ages.  

A guide to the acorn grinding station may be viewed for the following grades:

The standards that may be covered during this activity include:






Earth Sciences


Students know how to identify resources from Earth that are used in everyday life and understand that many resources can be conserved.

Grade 2

Earth Sciences


Students know rock, water, plants, and soil provide many resources, including food, fuel, and building materials, that humans use.

History-Social Sciences


Students understand basic economic concepts and their individual roles in the economy and demonstrate basic economic reasoning skills. Understand how limits on resources affect production and consumption (what to produce and what to consume).

Grade 3

Life Sciences


Students know plants and animals have structures that serve different functions in growth, survival, and reproduction.


Students know living things cause changes in the environment in which they live: some of these changes are detrimental to the organism or other organisms, and some are beneficial.


Students know when the environment changes, some plants and animals survive and reproduce; others die or move to new locations.

Physical Sciences


Students know sources of stored energy take many forms, such as food, fuel, and batteries.


Students know machines and living things convert stored energy to motion and heat.


Students know energy can be carried from one place to another by waves, such as water waves and sound waves, by electric current, and by moving objects.

History-Social Sciences


Students describe the American Indian nations in their local region long ago and in the recent past. Describe national identities, religious beliefs, customs, and various folklore traditions.


...Discuss the ways in which physical geography, including climate, influenced how the local Indian nations adapted to their natural environment (e.g., how they obtained food, clothing, tools).

Grade 4

Life Sciences


Students know producers and consumers (herbivores, carnivores, omnivores, and decomposers) are related in food chains and food webs and may compete with each other for resources in an ecosystem.


Students know decomposers, including many fungi, insects, and microorganisms, recycle matter from dead plants and animals.


Students know that most microorganisms do not cause disease and that many are beneficial.

Biotrek is an education-based project that reaches out to K-12 and college students, and other community members, emphasizing the need to share knowledge, values and behaviors that support biological sustainability on a finite Earth.