You're on track to get doubled donations (and unlock a reward for the colleague who referred you). Keep up the great work!
Take credit for your charitable giving! Check out your tax receipts

In a rush to make a major tax-deductible gift before the year's end? Purchase account credits and choose projects later!

Time is running out! Make your tax-deductible gift before midnight on December 31.

To use your $50 gift card credits, find a project to fund and we'll automatically apply your credits at checkout. Find a classroom project
Are you a public school teacher in need of funding? Get funded »
Skip to main content

We're a charity that makes it easy for anyone to help a classroom in need. Your gift is tax-deductible.

Your school email address was successfully verified.

  • $188 goal

Hooray! This project is fully funded

Mr. Arce-Larreta
Grades 9-12
More than half of students from low‑income households
  • 9 donors
  • $0 still needed

Physics Of Sound

My students need a tuning fork set, 15 slinkys, and a logitech speaker system for a labs on: finding the speed of sound, wave characteristics and interference.

My Students

Science and engineering will provide most of the future jobs and industry in our country.

Our students are 9-12th graders in an urban city high school.

About 60 percent are on fee waivers due to low income. My classrooms include a diverse mixture of low-income students as well as high income high achieving students. I teach AP and IB Physics and general physics.

My Project

The students ability to apply concepts from the book to real world applications will help them understand and learn the material. Engaging students with hands-on learning will also help many students who do not learn from a lecture or from reading textbooks. The tuning forks will be used to estimate the speed of sound in a resonance lab. The tuning forks when held over an closed pipes will resonate at harmonics which can then be used to calculate the speed of sound. The slinkies will be used for a hands on lab to generate longitudinal and transverse mechanical waves. Many wave characteristics can be generated by these objects to introduce students to wave mechanics. The dual computer speakers will emit sound waves with matching frequencies from two sources. They will naturally interfere constructively and destructively with each other. The students walk around the room and hear differences firsthand. These tools will be used in engaging activities in the science laboratory.

Helping us with this project will help future inspire future scientists and engineers.

Sound engineering is vital to the the current music industry. Students love learning this topic as music often connects them to physics and science.

Read More

Hooray! This project is fully funded

Where Your Donation Goes

Materials Cost Quantity Total
TUNING FORK ALUMINUM DIAGNOSTIC SET/8 • Frey Scientific $67.46 1 $67.46
SLINKY PLASTIC • Frey Scientific $2.66 15 $39.90
Logitech Z320 Speaker System • $19.99 1 $19.99

Materials cost


Vendor shipping charges


State sales tax


3rd party payment processing fee


Fulfillment labor & materials


Total project cost


Suggested donation to help DonorsChoose reach more classrooms


Total project goal


How we calculate what's needed

Total project goal


8 Donors


Donations toward project cost


Donations to help DonorsChoose reach more classrooms


match offer


Match offer toward project cost


Match offer to help DonorsChoose reach more classrooms


Still needed View calculationHide calculation


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

View complete list Show less

9 donors9 donors have given to this project.

This project will reach 120 students.

Project Activity

This classroom project was brought to life by Wells Fargo, Utah and 8 other donors.

Boost your odds

Add a profile photo in addition to your classroom photo. If you add a photo, it'll show up right here on your project page.

You are more likely to receive funding if you put a face to your name.

Upload a photo
{"pmaHash":"","schoolCity":"Salt Lake City","showProjectRecommendations":true,"teachersOnPage":[1123155],"isTeacherViewingTheirOwnProject":false,"schoolState":"UT","teacherPossessivePronoun":"his","PMsManager":null,"schoolGradeType":{"id":4,"name":"High School"},"TeacherPMForms":{},"applePayMerchantID":"","proposalId":985664,"proposalMessageFormModel":null,"numActiveProjects":0,"completingDonationAmount":0,"teacherHasClassroomPhoto":true,"proposalURL":"","verifyShowPhotos":"","numStudents":120,"teacherScreenName":"Mr. Arce-Larreta","authorIds":{"1123155":{"owner":"Mr. Arce-Larreta","donationSalutations":{}}},"displayedPercentFunded":1.0,"proposalsOnPage":[985664],"proposalHash":"1165820652","isApplePayMobileOnly":true,"progressBarPercentage":100.00,"pmaId":"","teacherProfilePhotoURL":"","teacherHasProfilePhoto":false,"currentWorkflowStatusCode":21,"teacherChallengeId":264891,"photosPublished":true,"queryString":"","DonorPMForm":null,"isApplePayEnabled":true,"fundedByTarget":false,"activeProject":null,"donorIdsForImpactPhotoCheck":["NTE3MjQz","MTgxMTIwMA==","MTA5NTU5Ng==","MTc3NjMyNQ==","MTgwODg2NQ==","MTM5MzQ4OA==","MTY1MDM4OA==","MTgxMDg3MQ==","MTY0NDI4NQ=="],"teacherId":1123155,"schoolCounty":"Salt Lake","fullyFunded":true,"isStudentLed":false,"isExpired":true,"schoolStateObj":{"code":"UT","name":"Utah"}}