Measurement is the process of finding a unit (often a number) that tells something about an object or event. We can measure distance, size, weight, volume, temperature, and much more — and there are lots of fun accessible tools to help us!
Measuring with standard units means measuring with inches, feet, yards, centimeters, meters, pounds, grams, cups, pints, etc., using rulers, scales, and other standardized measuring devices.
Measuring with non-standard units means measuring with blocks, paperclips, feet, bottle caps, etc. Whatever items are used, they must all be the same size.
Accessible Rulers, Calipers, and Tape Measures
The Tactile Caliper is a simple to use, accurate, low-cost measuring ruler for the blind and visually impaired that provides a braille output to 1/16th of an inch.
5-Foot Nylon Tape marked with sturdy metal buttons from the Braille SuperStore is great for kids.
Flexible Plastic Meter Tape from SAVI/SELPH includes large print and braille numbers.
Accessible Measuring Cups, Spoons, and Beakers
MEASURE UP! Cups by Discovery Toys are 12 cups that are volumetrically correct and sequentially sized and numbered (e.g., 1 cup + 2 cup = 3 cup).
These SAVI/SELPH beakers, graduated cylinders, syringes, and volume measurement tools are great additions for the science classroom.
Accessible Clocks and Calendars
The Analog Clock Model from APH helps you learn about time-telling concepts. It has braille and raised large print markings and hands that are synchronized and easily rotated.
Each APH Clock Face Sheet has four embossed braille clock faces to which clock hands can be added.
Create your own calendar with the APH Individual Calendar Kit!
The SAVI/SELPH thermometer includes both braille and large print scales for measuring temperature in degrees Celsius. Tabs are included along the rim to mark temperatures for comparison.
With the Tactile Demonstration Thermometer from APH you can read, set, and compare temperatures. The Fahrenheit and Celsius scales are in large print and braille.
This activity was created by Janet Ulwick-Sacca for Great Expectations.