Today's Homework and Lessons
Today's Lessons - Tuesday, Sept. 18:
No Updates on Friday

In math, both groups reviewed our discussion on comparing place value using base ten. 

For example:

3 4 5, 5 4 6  Compare the value of 40,000 to the value of 40.

The 4 in 40 is three places from the 4 in 40,000.  The 40,000 is 10 x 10 x 10 or 103 or 1000 times larger than the 4 in 40.  So, 40,000 is 1000 times larger than 40.  You can check your work by multiplying: 

40,000 = 1000 x 40 

Also: 4 x 10 x 10 x10 x 10 = 10 x 10 x 10 x (4 x 10)  where there are four tens on both sides of the equality and one four.

Remember, each place in the base ten number system increases to the left by a power of 10.

We also reviewed for tomorrow’s graded classroom assignment on base ten exponents and place value:

The 10 in 108 is called the base; the 8 is called the exponent.

100 represents the one’s place – not a group of ten, so the exponent 0.  Anything to the zero power is equal to one.

101 represents the ten’s place – one zero or one group of ten expressed by the exponent one.

102 represents the hundred’s place – two zeroes or 10 x 10 or the exponent two.

103 represents the thousand’s place – three zeroes or 10 x 10 x 10 or the exponent three.

The pattern continues…, so one million is 106 or 10 x 10 x10 x 10 x10 x 10 – in fact, the exponent six tells us that our product will have six zeroes:  1, 000, 000.

In science, students reviewed our graded assignment on sickle cell anemia.  We also began a discussion on Lake Victoria – a story to help us understand how man affects our environment.


 


Homework: Tuesday, Sept. 18:

 Math: Group 1: Comparing PV with base
ten exponents worksheet

Group 2:  Comparing PV with base
ten exponents worksheet



Science:   None