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Test Taking is a Skill: learning from ‘fuzzy errors”

At least 5 times a week, someone will share that their son or daughter is a poor test taker.  We all know people who ace the test with no effort but much can be gained by focused studying and commitment and I do not just mean test scores!

Tests may not always show knowledge and skills — that 7 in Physics was tough freshman year (yes out of 100!) but I learned so much about attention to detail and focus.  How many times do we see 2^3 (2 to the 3rd) = 6 rather than 8?  I call these “fuzzy errors”.  People can improve their test scores and their attention to detail by answering the exact question and noticing the finer points of what they are being asked.

How did I learn to do this?  The hard way — btw, my next score in Physics was exciting because it was double digit — 11!  (because class avg was so low, I still managed a C in the class).

December 2014 Brain Teaser Solution

Q: Tree A and tree B both have some birds.   The tree A birds tell the tree B birds “if one of you comes to our tree, our population will be the double of yours.”   The tree B birds tell the tree A birds “if one of you comes here, then our population will be equal to that of yours.” How many birds in each tree?

A:  Tree A has 7 birds and tree B has 5 birds

This can be done with guess and check or algebra

This is for statement 1)  A + 1 = 2(B – 1)

This is for statement 2)  A – 1 = B + 1

This is A in terms of B from 2) A = B + 2

Then sub into statement 1 and solve for B

B + 2 + 1 = 2B – 2

B + 3 = 2B – 2

B = 5

then can solve for A using either equation A – 1 = 5 + 1    therefore A = 7

How do you stack up?

image

Above are the class averages for 3 9th grade Algebra classes.

When you get back a Math test test your score isn’t that important.  What’s more important is how you did compared to the rest of the class.   If you got a 90 and the class average is 70 you rock! If you got a 90 and the average is 95 not so much!