".2mL PCR tubes"

Digital counter/timer for measuring duration of motion, transition times, periods, pendulum periods, frequencies, as well as for counting events or Geiger tube pulses. Includes a speaker that can be turned on and off, and power supplies for direct connection to light barriers. For event counting, a fixed counting period can be programmed in a range from 0.1ms to 99999s. Counter events (e.g. start or stop) can either be triggered by a signal to the input sockets or manually via switches. The unit includes a plug-in power supply.

This set of 1,000 interlocking gram cubes is the perfect gift for any visual learner.

Base 10 decimeter cubes. Units are 1×1×1 cm and larger pieces are scored to show units.

Practice patterning, grouping, sorting, counting, numbers, addition, subtraction, multiplication, division, measurement, and more with these colorful ³/₄" cubes.

Demonstrate the Relation of Length, Area, and Volume

1" cubes made of hardwood in six bright colors. Set of 102.

Package of 100, 300 or 500 interlocking cubes in 10 standard colors. An activities booklet is included.

These Orange Unit Cubes will help your students or kids learn math concepts by providing them a visual model.

Build On A Smaller Scale.

Four High-Quality Instruments Housed in a Sturdy Plastic Storage Case.