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This teacher needs your help!

Mr. Van Arsdale from Eagle River, AK is requesting technology through DonorsChoose, the most trusted classroom funding site for teachers.

See what Mr. Van Arsdale is requesting

High Precision Measurements in Biology

My students need high precision balances for fine scale measurements.

  • $399 goal

Hooray! This project is fully funded

Hooray! This project is fully funded

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Help Mr. Van Arsdale

My Students

I teach students about life, literally, about biological life. On a daily basis I share my passion with my AP Biology class through the topics of ecology, biochemistry, cell biology, genetics, evolution, and anatomy.

I teach at a small Alaskan high school not far away from Anchorage.

My students are predominantly middle class, with a high percentage that are dependents of active duty military. About half of my students will have been in our school system since first grade, and the other half will not (or have not) spend all four years of their high school career in Alaska. Our school is both highly stable and highly transient. That dynamic creates a cohesion that, we like to think, leaves both groups of students better off for the mix.

My Project

In my Advanced Placement Biology class we spend over 50% of our week doing inquiry. Many of the labs I do require high precision measurements for mass. For example, currently my students are investigating the rates of primary production amongst different seeds. The changes in mass from seed to dried plant address a fundamental misconception in biology (where does the mass of a plant come from.) Currently I have two balance capable of measurements to 0.001 and 33 students in my class. This creates and untenable situation, with long lines for students.

This donation will improve the ability of my students to do true science inquiry.

It will put into my students hands tools that can empower the development of their skills as biologists.

Mr. Van Arsdale Eagle River High School Grades 9-12

More about Mr. Van Arsdale

Eagle River, AK View local requests

More than a third of students from low‑income households Data about students' economic need comes from the National Center for Education Statistics, via our partners at MDR Education. Learn more

33 students impacted 2donors

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Where Your Donation Goes

Where your donation goes
Materials Cost Quantity Total
Smart Weigh GEM20 High Precision Digital Milligram Scale 20 x 0.001g Ideal for Weighing Gems, Jewelry and other Precious Objects (Silver) • Amazon $19.99 15 $299.85

Materials cost

$299.85

Vendor shipping charges

 FREE

Sales tax

 $4.50

3rd party payment processing fee

$4.50

Fulfillment labor & materials

$30.00

Total project cost

$338.85

Suggested donation to help DonorsChoose reach more classrooms

$59.80

Total project goal

$398.65

How we calculate what's needed

Total project goal

 $398.65

1 Donor

-$199.33

Donations toward project cost

-$169.43

Donations to help DonorsChoose reach more classrooms

-$29.90

match offer

-$199.32

Match offer toward project cost

-$169.42

Match offer to help DonorsChoose reach more classrooms

-$29.90

Still needed View calculationHide calculation

 $0.00

Our team works hard to negotiate the best pricing and selections available.

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Project Activity

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As a teacher-founded nonprofit, we're trusted by thousands of teachers and supporters across the country. This classroom request for funding was created by Mr. Van Arsdale and reviewed by the DonorsChoose team.

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