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Mr. A from Costa Mesa CA is requesting technology through DonorsChoose, the most trusted classroom funding site for teachers.

Calculators with Natural Fractions

15 more Natural Display calculators are needed so that each computer workstation has one.

  • $369 goal

Hooray! This project is fully funded

Hooray! This project is fully funded

Celebrating Hispanic & Latinx Heritage Month

Celebrate Hispanic & Latinx Heritage Month

This project is a part of the Hispanic & Latinx Heritage Month celebration because it supports a Latino teacher or a school where the majority of students are Latino.

At risk students, some rich, many poor, find that their last chance is in a continuation high school (10-12). At risk students often struggle with basics, but mastering academic content is the success they need to stay in school. In a continuation high school, not only basic math, but also Algebra and Geometry, which engage higher order thinking, are taught.

In the more challenging activities, calculators are used so that students don't bog down. Otherwise they lose focus while doing arithmetic, when they need to stay on concepts. However, the hodgepodge of the "usual suspect" calculators work incorrectly for learning.

Only one manufacturer, Casio, offers a low-cost calculator with a natural display of rational fractions. Instead of 5.3333333333, 5 1/3 or 16/3 can also be displayed. Instead of sqrt(125) = 11.18033, 5sqrt(5) can be shown using the radical sign. This makes calculators useful in instruction; since most math problems expect rational and irrational numbers in their solutions, not just decimals. Generally, 21 students are in a class. Each works independently. Most teachers and students don't know about low cost natural display calculators, please help them find out.

15 more 2-line calculators that display rational fractions naturally will be shared between 120 students. Previously, 10 of these calculators were purchased by people like you at DonorsChoose. Yeah! They work so well that they are called the SEXY calculators and students fight for them. Please help place one next to each workstation. I have the Velcro.

Mr. A
Grades 9-12

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Where Your Donation Goes

Materials Cost Quantity Total
Casio fx-300ES Scientific Calculator • Nasco $15.84 15 $237.60

Materials cost

$237.60

Vendor shipping charges

$23.76

Sales tax

$17.23

3rd party payment processing fee

$5.94

Fulfillment labor & materials

$17.00

Total project cost

$302.00

Suggested donation to help DonorsChoose reach more classrooms

$66.29

Total project goal

$368.29

How we calculate what's needed

Total project goal

$368.29

3 Donors

-$352.50

Donations toward project cost

-$302.00

Donations to help DonorsChoose reach more classrooms

-$50.50

Excluded support for DonorsChoose

-$15.79

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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