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Mr. Long from Alameda CA is requesting supplies through DonorsChoose, the most trusted classroom funding site for teachers.

Designing, Engineering and Building Model Bridges.

My students need Model Bridge STEM packs, Model Bridge Classroom packs, and materials to build and test their bridge designs.

  • $699 goal

Hooray! This project is fully funded

Hooray! This project is fully funded

My Students

The students at our school come from every corner of the globe, and from every corner of the country. We have the children of Coast Guard servicemen and women, nurses, teachers, longshoremen and librarians. Our students come to us speaking 38 different languages. Yet. the thing that all these students share is an insatiable curiosity about how the world works.

I try to further this curiosity by teaching an elective class that exposes the students to skills and interests that they might never encounter otherwise; a course that combines practical use of math and art with a hands-on experience of designing and building models of structures.

My elective is one focused on engineering and architecture.

My Project

Students will design, engineer and build model bridges out of wood, and then progressively add loads to the bridges to test weakness in their designs. The bridge kits provide the raw materials, wood and glue, to construct the bridges. Students will use the Exacto knives and cutting mats to cut the wood samples to match their designs and then use the glue to assemble the pieces. After the bridge models are constructed, we will attach a container that allows us to add weight incrementally until the bridge fails (collapses). Students will then analyze what feature of their bridge gave out, and whether the failure was due to excess compression or tension on any one part. Students will then revise their models to improve the structural integrity of their designs. This project will provide them with the physical materials they need to construct their various designs.

Students will develop practical skills at designing, measuring, cutting and constructing architectural models of bridges, and gain experience in the engineering cycle.

Many of these students have never had real-world experience at measuring and cutting materials other than paper and paste in elementary school. These skills will prove useful in the students' science classes, in any subsequent engineering classes or coursework, and may be applicable in any art electives.

Mr. Long
Grades 6-8

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Where Your Donation Goes

Materials Cost Quantity Total
Alvin Self-Healing Reversible 18 x 24 Hobby Mat • Nasco $12.64 12 $151.68
Model Bridge Classroom STEM Pack - Basswood • Nasco $59.46 2 $118.92
Model Bridge Classroom Pack - Balsa • Nasco $59.46 2 $118.92
X-ACTO 602 No. 2 Blades - Pkg. of 100 • Nasco $32.52 1 $32.52
X-ACTO No. 1 Knife with No. 11 Blade • Nasco $2.56 12 $30.72
Building Toothpick Bridges in Geometry • Nasco $14.41 1 $14.41

Materials cost

$467.17

Vendor shipping charges

$46.72

Sales tax

$42.75

3rd party payment processing fee

$7.01

Fulfillment labor & materials

$30.00

Total project cost

$593.65

Suggested donation to help DonorsChoose reach more classrooms

$104.76

Total project goal

$698.41

How we calculate what's needed

Total project goal

$698.41

8 Donors

-$638.35

Donations toward project cost

-$551.15

Donations to help DonorsChoose reach more classrooms

-$87.20

match offer

-$50.00

Match offer toward project cost

-$42.50

Match offer to help DonorsChoose reach more classrooms

-$7.50

Excluded support for DonorsChoose

-$10.06

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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