Sunday, November 18, 2012

Let's Get Excited About Science!!!



In order for students to remain globally competitive, we need to expose them to STEM (science, technology, engineering, and mathematics).  Their future careers will be in the STEM career.  To learn more about FIRST, please go to the website:
www.usfirst.org


Friday, March 2, 2012

Scientist of the Week

This week, we learned about Rachel Carson.  We read an assigned biography on http://www.biguniverse.com/ and took notes.  If you are interested in finding more information about Rachel Carson, go to http://www.rachelcarson.org/

Wednesday, February 29, 2012

Elapsed Time

Calculating elapsed time, or time that has passed, can sometimes be tricky.  Here are two interactive activities to practice finding elapsed time.  The links will direct you to the activity, so to read about elasped time, click on the tab "learner".  Have fun!

http://www.shodor.org/interactivate/activities/ElapsedTime/

http://www.shodor.org/interactivate/activities/ElapsedTimeTwo/

Tuesday, February 21, 2012

Temperature and Elevation

If you were not able to explain how the temperatures changed as your family traveled up Pikes Peak on the Cog Railway, listen to Bill Nye the Science Guy.  

Subtracting Customary Units of Measurement with Ungrouping

Click on the link below to view an example of subtracting gallons and quarts using ungrouping....not borrowing! 


http://www.showme.com/sh/?h=pm0Dzzk

Adding Metric Units of Measurement using Regrouping

Below is an example of adding liters and kiloliters with regrouping.


http://www.showme.com/sh/?h=mJmf16m

Subtracting Metric Units of Measurement with ungrouping

Click on the link below for an example of subtracting grams and kilograms with ungrouping.


http://www.showme.com/sh/?h=J2tRVXk

Adding Customary Units of Measurement with regrouping

Click on the link below to view an example of adding quarts and pints with regrouping.


http://www.showme.com/sh/?h=b8YcFCi

The Water Cycle

Tuesday, February 14, 2012

Measurement

Use this information to help with homework:

Length

Customary (US)
Metric
1 foot = 12 inches
10 millimeters (mm) = 1 centimeter (cm)
3 feet = 36 inches = 1 yard
10 cm= 1 decimeter (dm) = 100 mm
1 mile = 5,280 feet
1,000 meters (m) = 1 kilometer (km)



Weight

Customary (US)
Metric
1 pound (lb) = 16 ounces
1,000 milligrams (mg) = 1 gram (g)
2,000 lbs = 1 ton
1,000 grams = 1 kilogram (kg)




Capacity

Customary (US)
Metric
8 ounces (oz) = 1 cup (c)
1,000 milliliters (mL) = 1 liter (L)
2 cups = 1 pint (pt)
1,000 Liters = 1 kiloliter (kL)
2 pints = 1 quart (qt)

4 quarts = 1 gallon



Thursday, February 9, 2012

Subtracting Mixed Numbers with Ungrouping

Don't let ungrouping scare you!  Ungrouping is simply changing the form of the same number.  It is similar to getting change for a $10 bill.  If you owe someone $4, but all you have is a $10 bill, you will need to break your bill by changing the form to a $5 and 5 $1 bills.  You still have $10, it's just in a different form.  Now you can give the person you owe $4.  Click on the link below to see an example.



Adding Mixed Numbers

When working with fractions, it is important to always remember to simplify, or reduce, fractions to the lowest term.  Click on the link to view an example.

Monday, January 9, 2012

Grand Canyon

Stream table with standard flow of water and no slope


What landforms do you notice in these pictures?  The sand/clay mixture represented the Colorado Plateau.  Do you see the canyon?  Can you identify the delta?  In our investigation, we learned the wearing away of earth materials
 caused by the forces of water, have changed the shape of the earth's surface overtime.  We also learned that the flow of water changes the land by moving eroded earth particles downstream which then carve steep valleys and canyons, as well as forms plains and deltas along the way. 


How does steeper slopes affect the rate of erosion and deposition?  How does a flood affect the rate of erosion and deposition?  We will soon find out! 

Circle Graphs



What does a circle and rotational symmetry have in common?  A circle has 360 degrees.  In order to determine if a polygon has rotational symmetry, we need to rotate it in a circular motion.  If we rotate that polygon less than 360 degrees and it fits on top of its original position, then it has rotational symmetry.  


We used this knowledge to understand, interpret and create circle graphs.  Circle graph is just like a pie chart.  If we collect data from 24 people, then each part of the circle should add up to 24.  The data collected represents a portion of the circle (or pie).  If the total number of data collected is 24, then 12 represents half (or 50%) of the circle. So, half or 50% of the people chose blue as their favorite color.   4 out of 24 people chose yellow.  This number represents 1/6 of the total number of people, so it should occupy 1/6 of the circle.  8 people chose red, which represents 1/3 of the total number of people, so it should occupy 1/3 of the circle.  


If we divide the circle into 12 equal sections (similar to a clock), then each section of the circle will represent 2 people because 24 divided by 12 equals 2.  



Why do students need to know or be able to do this?
  • Students apply their discoveries about angles in a circle to interpret and create circle graphs.

Wednesday, January 4, 2012

Did You Remember.....

Science Fair participation forms are due on Monday, January 13th.  If you have not starting working on your project, please do so!  

Geometry Review


Welcome back to school!  We needed some time to review geometry concepts, so we began with discussing how to measure the interior angles of a triangle.  Using a  protractor can be tricky, but just remember that the two sides of the angle being measured must cross the protractor.  The vertex (or point) of the angle should be in the middle of the small circle at the bottom of the protractor.  One side should intersect at 0 degrees and the location the second side intersects the protractor will be the measurement........but hold on!  You say there are two numbers on the protractor where the second side intersects?!  You would be correct, so you have to choose wisely.  If the angle is an acute angle (smaller than the corner of your paper, or 90 degrees), then use the smaller number.  If the angles is an obtuse angle (larger than the corner of your paper, or 90 degrees), then use the larger number.  If you add up all the measurements (three angles total), then you will surely get a sum of 180 degrees.  All interior angles of a triangle add up to 180 degrees.  And since a quadrilateral (four-sided figure) is made of two triangles, the interior angles add up to 360 degrees.  How many triangles make up a pentagon?  Three.  So that means that the interior angles of a pentagon add up to 540 degrees if each of the three triangles are 180 degrees.  180 x 30 =540.



To "Create These Figures", you are given the measurement of two or three angles in a polygon.  Your job is to find the measurement of the missing angles and use a protractor to draw these figures.  Remember, a reflex angle is an angle that measures more than 180 degrees.  I have done number 1 for you.  Please study the example and use this information to complete the homework.  Have fun!