Thesis Presentation

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Thesis Presentation

  1. 1. Can computer simulated labs be as effective as traditional hands-on labs in teaching content in science classes? Angelo C. Nicoletta SEYS 778
  2. 2. The Issues <ul><li>Previous studies have found that the laboratory component has a positive influence on a student’s learning (Rickel ’89). </li></ul><ul><li>Most science teachers have lab issues such as </li></ul><ul><li>Time constraint </li></ul><ul><li>Equipment & Materials </li></ul><ul><li>Over-crowding </li></ul><ul><li>Run down labs </li></ul>
  3. 3. What’s the Point <ul><li>Technology is being incorporated into most other facets of instruction </li></ul><ul><li>The main focus of this study is to use computer-based simulations for the purpose of creating appropriate and equivalent learning experiences of a laboratory in a non-laboratory environment </li></ul><ul><li>If successful simulation labs can alleviate in part all the issues previously mentioned </li></ul>
  4. 4. Hypothesis <ul><li>Using equivalent laboratory experiments, computer simulated labs can be as effective a tool for reinforcing content knowledge as a hands-on lab </li></ul>
  5. 5. The Study <ul><li>4 lab sections were broken into 2 groups </li></ul><ul><li>1. Hands-on lab </li></ul><ul><li>2. Simulated lab </li></ul><ul><li>All participants: </li></ul><ul><li>1. Took a pre-test </li></ul><ul><li>2. Week of lessons on the topic </li></ul><ul><li>3. Performed either the simulated lab or the hands-on lab </li></ul><ul><li>4. Took a post-test </li></ul>
  6. 6. Demographics <ul><li>85 students were in </li></ul><ul><li>the 2 groups </li></ul><ul><li>37 male, 48 female, average age was 17 </li></ul><ul><li>74 juniors, 7 seniors and 4 sophomores </li></ul>85 40 45 Total 48 25 23 Female 37 15 22 Male Total Simulated Hands-On Participant Data
  7. 7. The Labs <ul><li>The lab was a series of acid-base titrations </li></ul><ul><li>The only difference between the simulation lab and the hands-on lab was the simulation lab was done on a computer </li></ul><ul><li>http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/stoichiometry/acid_base.html </li></ul>
  8. 8. Results Looking at the post-test scores there appears to be evidence of learning
  9. 9. Statistics --------------------------------------------------------------------- SOURCE D.F. SS MS F PROB.>F OMEGA SQR. --------------------------------------------------------------------- BETWEEN 1 1.35 1.35 0.08 0.78 -0.01 WITHIN 83 1386.95 16.71 TOTAL 84 1388.31 p> 0.05 results are not significant
  10. 10. Data One Step Further <ul><li>What about possible gender differences? </li></ul><ul><li>SOURCE D.F. SS MS F PROB.>F OMEGA SQR. </li></ul><ul><li>--------------------------------------------------------------------- </li></ul><ul><li>BETWEEN 1 162.25 162.25 10.98 0.00 0.11 </li></ul><ul><li>WITHIN 83 1226.06 14.77 </li></ul><ul><li>TOTAL 84 1388.31 </li></ul><ul><li>p < 0.05 results are statistically significant </li></ul>
  11. 11. Females Vs. Males Figure 1: Pre-test mean v Group and Gender Group 1 – hands-on Gender 1 - female Group 2 – simulation Gender 2 – male
  12. 12. Females Vs. Males Figure 2 : Post-test mean v Group and Gender Group 1 – hands-on Gender 1 - female Group 2 – simulation Gender 2 - male
  13. 13. What Does It Mean? <ul><li>First it would appear that if equivalent labs are presented the students learning experience is not affected </li></ul><ul><li>Since post-test scores were relatively the same we can’t say one method was superior </li></ul><ul><li>Digging deeper showed a real issue between males and females </li></ul><ul><li>Possibly differentiated learning strategies for gender may need to be employed </li></ul>
  14. 14. What’s Next <ul><li>Other topics should be investigated </li></ul><ul><li>Other science classes should be tested </li></ul><ul><li>Other instructors should give lessons / labs </li></ul><ul><li>Further study should have more consistency in testing </li></ul><ul><li>Qualitative study should be done along with quantitative </li></ul><ul><li>Possibly testing all female and all male classes </li></ul>
  15. 15. <ul><li>Congratulations </li></ul><ul><li>Class of ‘08 </li></ul>

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