We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Blue transparent case calculator with two-line display and colour-coded keys

Texas Instruments

Texas Instruments TI15 Explorer Calculator 10-Digit Display

SKU CH-FFHA-Z6F74 MPN TI15

A solar- and battery-powered calculator with an 11-digit, two-line display that guides students through fraction simplification step by step

  • Product typeCalculators & Accessories
  • Key featuresHelps students develop skills
  • 10-digit display shows large, clear numbers for young learners
  • Dual solar and battery power keeps the calculator running in any light
  • Two-line display reveals fractions and decimals together for easier understanding
  • Step-by-step fraction simplification teaches the process behind the answer
  • Impact-resistant cover with transparent case protects the unit and shows internal components

Purpose and Audience

The Texas Instruments TI15 Explorer is a 10-digit calculator built for elementary students in grades three through six. Colour-coded keys and a transparent case help young learners identify functions and see internal components. Dual power from solar and battery ensures operation in various lighting conditions. It supports classroom learning by guiding users through mathematical processes step by step.

Learning Upgrade

This model replaces basic single-line calculators that only show final answers. The two-line display presents fractions, decimals and percentages simultaneously so students can compare notations. Automatic or step-by-step fraction simplification teaches the reduction process rather than just the result. Built-in problem generators create exercises and walk learners through each solution stage.

Setup Checklist

Verify that the learning environment provides enough ambient light for solar operation or keep fresh batteries available for dimmer settings. Confirm the 6.9 by 3.5 by 0.7 inch dimensions fit the intended desk or storage space. Ensure the curriculum matches the supported operations such as fraction conversion and power functions. The impact-resistant cover adds durability for daily school transport.

How it compares

Measured against everything we stock in Calculators & Classroom Supplies, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 70% of the 1,255 comparable items (median $25.99).

Specifications

Product
Brand nameTexas Instruments
Model nameTI-15
Product typeCalculators & Accessories
Size & build
Shipping weight0.20 kg
Package size247 × 173 × 38 mm

Questions about this item

What are the exact dimensions of the calculator so I can check if it fits in a pencil case?

The calculator measures 6.9 inches by 3.5 inches by .7 inches.

How do I power the TI-15 on for the first time, and what is the common mistake?

Expose the solar panel to light or install a battery; the common mistake is covering the solar strip while expecting it to operate without battery backup.

Which user-replaceable power source will need changing over the life of the TI-15?

The calculator uses a single battery as backup power; replace it when the display dims in low-light conditions.

More in Calculators & Classroom Supplies

Similar items