9.6: Activity 5

Objective

To explore the effects of temperature on handwriting performance by measuring legibility, speed, and overall quality under varying temperature conditions.

Testable Hypothesis

If the temperature of the water bath is increased, then students' handwriting speed and legibility will improve, as measured by the time taken to complete the writing tasks and the legibility scores assigned by peers.

• Independent Variable: Temperature of the water bath (cold, room temperature, warm).
• Dependent Variables:
  • Handwriting speed (time taken to complete writing tasks).
  • Handwriting legibility (scores assigned by peers).

Materials

For this exercise, you will need a pencil, a bowl with warm water, a bowl with ice cold water, and a timer or stopwatch.

NOTE: As you engage in this handwriting activity, please remember that the assessment of handwriting legibility is not a personal comment on any individual's handwriting skills. The primary goal of this activity is to explore and understand the effects of temperature on fine motor skills, specifically how it can influence handwriting performance.

• Focus on Learning: The emphasis is on observing changes in handwriting speed and legibility due to temperature variations, rather than evaluating personal handwriting abilities.
• Constructive Environment: Approach this activity with the mindset of gaining insights into muscle function and coordination, allowing for a supportive and collaborative learning atmosphere.

Procedure

1. Students will rotate through three temperature conditions: cold (ice bath), room temperature water (baseline), and warm (warm water bath - 40°C to 45°C or 104°F to 113°F). This range is warm enough to relax the hand muscles without causing discomfort or risk of burns. It is essential to ensure that all participants feel comfortable at this temperature.
2. Using the tiny pencil provided to you, write “Exploring effects of temperature on fine motor skills” 3 times on a piece of paper (baseline).
3. Submerge your writing hand in ice cold water for 3 minutes, then remove your hand from the water and write “Exploring effects of temperature on fine motor skills” 3 times just below the writing in baseline condition. Label “Cold”.
4. Submerge your writing hand in nice, warm water (not hot!) for 3 minutes, then remove your hand from the water and write “Exploring effects of temperature on fine motor skills” 3 times just below the writing in ‘Cold’ condition. Label “Warm”.
5. Legibility Assessment: After writing, the instructor or peers will evaluate the legibility of each participant’s handwriting on a scale of 1 to 5. (1 being very poor, 5 being excellent).
6. Once all groups have completed the tasks, discuss trends observed in the data.
   1. Did the data support or refute the hypothesis that increasing the temperature of the water bath improves handwriting speed and legibility?
   2. Did you experience differences in the pressure applied to the pen when writing in cold versus warm environments?
   3. What might be the physiological reasons behind these changes?