LOOK THROUGH THE POWERPOINT AND ANSWER QUESTIONS 1 AND 2 IN YOUR JOURNAL.

1. WHAT HAVE WE LEARNED ABOUT OBSERVATIONS FROM THESE

SLIDES? Answer in your journal.

2. READ CONCLUSIONS ABOUT OBSERVATIONS JOT DOWN IDEAS THAT SEEM DIFFERENT AND LOOK UP ANY CHALLENGING

WORDS.

• OBSERVATIONS OF OPTICAL ILLUSIONS TEACH US THAT

INFORMATION IS NOT ALWAYS NOTICEABLE AT FIRST.

• AS HUMAN BEINGS, AND AS SCIENTISTS, WE MUST MAKE

QUANTITATIVE OBSERVATIONS SO THAT WE OBJECTIVELY

JUDGE AND PROTECT AGAINST THE TENDENCY TO SEE

ONLY WHAT WE EXPECT TO SEE.

• IN THIS WAY, WE MAKE OUR BEST EFFORT TO AVOID

SUBJECTIVITY.

• A LARGE SAMPLE BRINGS US CLOSER TO THE TRUTH.