The Online Student Journal of Science and Math


Great learning happens everyday at David Daniels Academy.
Here are some examples of the science and math works of our students.

Wednesday, February 22, 2012

Seasons


In the spring, leaves start to grow on the trees.  In the summer the tree are filled out with their leaves.  In the fall the leaves fall off of the tree and leaves change color.  In the winter no leaves or few leaves are on the tree.

Tariq, 1st grade


Tuesday, February 21, 2012

Benjamin Banneker


Benjamin Banneker was born in 1731, [in] Maryland, America.  When Benjamin Banneker was a boy he studied math and a pocket watch.
Benjamin helped people by [making] a clock and it told the weather [and] the seasons.  Benjamin helped by [making] the Almanac because it told them when to plant.  Benjamin studied a watch and their parts like the inside and the outside of the watch.  Benjamin knew stuff like multiplication, adding and subtracting and he knew more than his teacher.  Farming in the past was done by hand and not tractors or farm machines.
Benjamin Banneker’s inventions [are] important because we can tell time now!

Robert and Tanisha, 2nd grade

George Washington Carver



George Washington Carver was born in Missouri [in] 1861.  He studied plants and farming.  George studied even more about plants.
He made peanuts [into] peanut butter, ice cream, paper, ink, shaving cream, and shampoo.  George found that he could make 118 different products from sweet potato.  These included soap, coffee, and glue.  That he made over 300 different products from peanuts.  George knew so much about plants that the people called him the plant doctor. 
[If] George Washington Carver did not make shampoo we could not wash our hair.

-Oranda and Abe, 2nd grade

Wednesday, February 15, 2012

Food Web


In my food web the sun provides the energy needed to run the process.
Lettuce is my producer.  It provides it's own food.  I picked lettuce to by my producer because it is eaten by a wide variety of animals.
Consumers do not produce their own food.  My primary consumers are mice, crickets, and groundhogs.  My secondary consumers are foxes, snakes, bobcats and owls.
My top predators are owls and bobcats.  A top predator is not eaten by any other animals.

Toby, 5th grade

Food Web


A food web always begins with the sun because it produces energy for all plants.  The small plants are producers, meaning it makes it's own food.  Then the fish eats the plants, leaving the fish an omnivore.  An omnivore eats plants and animals.  Next, the penguin eats the fish and is eaten by a Leopard Seal.  They are both carnivores, which means they only eat meat.  The Orca, who is also a carnivore, eats the penguin as well as the Leopard Seal.  This method will repeat itself over and over again.

Daysia, 5th grade

Wednesday, February 8, 2012

Measuring Capacity


The "G" stands for gallon, "Q" for quarts,  "P" for pints,  "C" for cups and little dots for ounces. This is good to go back and look to remember the gallon.

Magalie, 4th Grade

Measuring Capacity


This picture helps me remember how to measure capacity. 

Zaylyn, 4th Grade

Friday, February 3, 2012

Ladybugs

There are 3 ladybugs on the floor.  Each ladybug has 8 legs.  How many legs do they have in all?
8+8+8=24                    
3 groups of 8
3x8=24

Toni, 2nd grade

El Sistema Solar


El Sistema Solar
El Sistema Solar se compone de objetos como asteroides, planetas, el Sol, meteoritos, órbitas, y cinturón de asteroides.
Un planeta está hecho de masa y gases.  También está hecho de rocas que orbitan alrededor del Sistema Solar.
Una órbita es donde los planetas rotan alrededor del Sol.  Porque si no van en una órbita chocan.
El Sol es una bola gigante de gases, y los planetas rotan alrededor del Sol.  El Sol también es brillante como una estrella.
El cinturón de asteroides es un grupo de rocas juntas en medio de Marte y Jupiter también se le puede llamar que está entre medio de los planetas interiores y exteriores.
Los planetas interiores son fríos, pequeños, y rocosos.  Los planetas exteriores son grandes, gaseosos, y tienen color.

 The Solar System
The Solar System consists of objects like asteroids, planets, the Sun, meteors, orbits, and asteroid belt.
A planet is made of mass and gases.  Also it’s made of rocks that orbit the solar system.
An orbit is where the planets rotate around the sun.  Because if they are not in an orbit, they will collide.
The Sun is a giant ball of gas, and planets rotate around the sun.   The Sun is also a shining star.
The asteroid belt is a group of rocks together in the middle of Mars and Jupiter.   Also you can say it is between the interior and exterior planets.
The interior planets are cold, small and rocky. The exterior planets are large, gaseous, and have color.

-Naomi, 3rd grade

The Astronaut

 
The astronaut said, "Look at my blue [suit]."
-Ericka, Kindergarten

Thursday, February 2, 2012

Fractions


Fractions

There are three types of fractions.  The proper fraction has the smallest number on the top and the large number on the bottom.  There is another type of fraction called improper fraction.  In this case the large number is the numerator and the smallest is the denominator.  And the last one, a mixed fraction is a whole number and a proper fraction combined.

You change an improper fraction to a mixed fraction by dividing the numerator by denominator.  The quotient needs to be the whole number and the remainder is the new numerator.  And the denominator stays the same.

If you want to change a mixed fraction to a proper fraction you multiply the denominator by the whole number and add the numerator.  Then write your answer.  The total when you add the whole number to the numerator goes on the top and the denominator stays the same.

 -Salma, 5th grade