$65 for Skills Assessment, Tutoring, and Report-Card Evaluation at Sylvan Learning Center ($350 Value)

Central Beaverton

$65
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In a Nutshell

Diagnostic assessment starts a personalized approach designed for kids in grades K–12 in subjects including, math, reading, and writing

The Fine Print

Promotional value expires 90 days after purchase. Amount paid never expires. Not valid for clients active within the past 3 month(s). Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. All goods or services must be used by the same person. Appointment required. Cannot be combined with other offers or deals. Valid only at listed location. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

$65 for a private-tutoring package ($350 total value)

  • Diagnostic skills assessment ($200 value)
  • Two hours of private tutoring in any subject ($100 value)
  • Report-card evaluation and registration fee ($50 value)

Pocket Calculators: Bite-Sized Binary

Doing math is much easier with a calculator in your hand, but what’s really happening under those buttons? Read on to learn more about the complex calculations happening inside.

Few modern inventions are as taken for granted as the calculator. Today’s calculators are so small as to be practically forgotten, tucked away in a pocket or the apps folder of a smartphone. But despite the compact size, a calculator’s functions are surprisingly complex—the collaboration of several electronic circuits working together is needed to arrive at something even as simple as 2+2. When a user presses the buttons of a calculator, a chip inside translates each input into a binary number—a series of 1s and 0s—which it can more easily store in memory and send through a variety of built-in functions. Each function exists on an integrated circuit with its own logic and assortment of tiny counting beans. At the end of the calculation, the processor translates the binary solution back into a legible number and sends it to the calculator display. Heck, even the display is controlled by binary logic, which is why the numbers commonly consist of segmented lines. Each part of every numeral can be turned on or off according to the processor’s instructions.

All this work happens so quickly and seamlessly we barely think twice about it. But only a few decades ago, the digital calculator was a revolutionary device—a mash of circuits and displays the size of a cash register and the cost of a midsize car. Before the 1960s, the only tools used to make personal calculations were objects such as the abacus and, beginning in the early 19th century, a variety of crude mechanical computers that used wheels and cogs to carry about basic arithmetic. Sharp unveiled the first desktop calculator in 1964, but it wasn’t until the development of the microprocessor a few years later that engineers could begin to create pocket-sized versions. Nevertheless, calculators remained an expensive novelty for quite some time. A 1971 commercial for the Sharp EL-8, one of the first handheld calculators, touts its “price tag to match”—the low, low price of $345.

Customer Reviews

Great experience with the director of the program
Mizraim M. · September 21, 2016
Merchant Location Map
  1. 1

    Central Beaverton

    12225 Southwest 2nd Street

    Ste 100

    Beaverton, OR 97005

    +15036267466

    Get Directions

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