Inquiry: Ruler Reflexes

This week for inquiry, we learnt about human reactions. We had a small challenge that included simply a ruler, a

partner, and our reactions. Our task was to attempt to grab a ruler as fast as possible. We were given 3 different

reactions to test. Visual, where we had to grab the ruler just by watching it. No count down, go or anything. Next

was aural, where we had to close our eyes, and where only told "GO" for when we could attempt to grab the
ruler. No countdown, no looking, no touching, just a simple go. Finally, was touch. We closed our eyes, no words,
just a tap on the shoulder letting us know when to grab. The partner that I was given was Tiava, and we had a lot
of fun working together. What we needed to do next was graph our data. Although to make it even better, we
were to group up with another pair and graph all of our data in one big graph. So for this, we chose to work with
Sanujan and John. Once we had graphed all 4 of our data, it turned out that to our surprise, that the graph showed Sanujan was the best at test 3. The graph also showed that Sanujan was also the best at test 2. Finally at test 1, the graph showed that John was the best. When putting all of our data together as an average, it turned out that we were the best at test 3, followed by test 2, and ending at test 1. Although once we were done with that graph, we also needed to create another graph showing our speeds. To do that, we used a site that included the times for how long it would take to catch the ruler for each centimetre, as it picked up speed. We had a lot of fun all working together, and in the end, made a pretty great graph.

Tiava Hypothesis: I think that I will be best at Test 2, because I think that signals to the brain will be faster than

sight, or touch.

Jack Hypothesis:  I think that I will be best at Test 1, because I think that my eyes will signal my brain faster than

anything else.

	Tiava	Jack
Test 1
1	19	0
2	0	10
3	27	27
Test 2
1	0	0
2	29	0
3	22	9
Test 3
1	24	0
2	23	14
3	0	9
Test 1 Results	76	67
Test 2 Results	81	69
Test 3 Results	77	53
Results	Test 1	Test 3

Evaluation:

Jack:

I found this interesting, as my hypothesis was for test 1 to be the one I was best at, but instead it was test 3 that I

was the best at. Meaning that my hypothesis was incorrect. I must’ve been incorrect because I didn’t realize that

I sent signals to my brain faster through touch that sight. Although there is a chance of it being just a one off
time.

Tiava:

I found this surprising because my hypothesis was for test 2, but I excelled at test 1. I think that my hypothesis

was incorrect because my body and brain reacts faster when I can visual see the ruler drop than hear the word
go.