What’s Goin’ On In Room 133

Posts Tagged ‘scientific notation’

OK, Colleagues – for those of you who could have found better success on that last test (in other words, if you scored less than 70%) , this is your opportunity to get a passing grade in the books for this lesson.   And for those of you who wanted a better score than you got, this is your opportunity to raise it to the next letter grade.  (It’ll look real good on that report card!)

Print out the following worksheets.   There are some fill-in the blank notes (use your text, interactive notes and the old noodle!).  There are a few questions to do on the worksheet themselves.  And, on the second page of each sheet, I have a list of questions from your textbook* that you have to tackle.   Complete everything and bring it in for credit – or extra credit, if you’re into that sort of thing ! 

7.1 Test Make-up Fractions Percents

7.1 Test Make-up Scientific Notation

Git ‘er dun – and git yer grade right!  

(*Enriched Math: these questions are in the blue textbook, so see me if you want in on this!)

Pluto’s maximum distance from Earth is about 4.6 billion miles.  One mile is equal to 5,280 feet.  Find the approximate maximum distance of Pluto from Earth in feet.  Then convert your answer to scientific notation and round your first factor to the nearest hundreth.  

(And may the Force be with you!)

(Rhymes with WiFi; yeah)

So now you know how to use scientific notation for both very large numbers (1.23 x 10-to-the-7th-power = 12,300,000) and for very small numbers (1.23 x 10-to-the-negative-7th-power = 0.000000123).   Note: Sorry about the way I had to write it here, colleagues, but this program won’t let me write the format the way we had it on the board in class. 

The first number could be a distance in miles for space travel, the second could be the width in microns of a single cell organism.   Either way, they make recording and calculating real-world measurements a whole lot easier!  And, I dare say, a lot more fun!

Remember: when you are converting numbers from standard form to scientific notation, or from scientific notation to standard form, don’t count zeros – count decimal places!  And finish up that worksheet on the subject while you’re at it.  You’ll find all the guidance you need in Section 1-9. 

See you Monday, colleagues!