Accessible Time Tracking

As my class calculated their speed walking from one building to another on campus, it occurred to me how frequently time tracking is part of science labs.  When a student with a visual impairment has the tools and know-how to be the time keeper for an experiment, he/she will be much more interested and involved in the activity. Through a very simple take-home lesson,  encouraging and empowering your student with visual impairment to be the time keeper during labs, can truly make a difference in his/her experience in science lab and encourage further interest in science.

How can students with visual impairments track time in science activities?

  • The students used accessible apps on their devices for this activity to measure the time it took to walk the distance and measured the distance using a trundle wheel (http://www.perkinselearning.org/accessible-science/trundle-wheel). They then calculated speed using the appropriate formula (Speed= distance/ time). 
  • This activity, as many science activities, required that students use a tool to track time.  For students with visual impairment in general education science classes, familiarity with an accessible stopwatch/timer will allow the student to be more involved in the many lab activities requiring this measurement. 

Which time tracking tools are the most accessible?

An advantage of a stopwatch over iPad stopwatch is that is can run in the background, allowing the student to time for long periods of time, while the use of the iPad for other purposes is necessary.  In other words, the stopwatch keeps measuring even when the iPad is used for other purposes.
 
As always, accessibility leads to increased participation and engagement.
 
Collage for accessible time tracking
 

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