January Eureka

                                                                         Eureka

1. Pull out the ancient calculating device.  Bring your abacus to class, please!

Beginner Abacus Students: 


Continue practicing by filling out any worksheet from this PDF File.  Just do the level that you are at.   Also, we will go over this in class, and answer any questions.  Remember, this will get really useful with bigger numbers!

To learn the next step in adding, watch this video with your abacus in hand, and work the problems with her.

2.  Here are some neat inventions that were created a long time ago.  We still use both of them today!  Which one do you think is the most useful?  You can go learn more about them if you want to know some awesome stuff!

HOT AIR BALLOON Joseph (1740-1810) and Jacques Etienne (1745-1799) Montgolfier were two French brothers from Vidalon-les-Annonay, near Lyons, who made the first successful hot-air balloon. Their first balloon was launched in December, 1782, and ascended to an altitude of 985 ft (300 m). This type of hot-air balloon was called the Montgolfiére; it was made of paper and used air heated by burning wool and moist straw. The first passengers in a hot-air balloon were a rooster, a sheep, and a duck, whom the Montgolfier brothers sent up to an altitude of 1,640 ft (500 m) on September 19, 1783 (the trip lasted for 8 minutes); the animals survived the landing. This event was observed by King Louis XVI and Queen Marie Antoinette of France.

PARACHUTE A parachute is a device for slowing down one's descent while falling to the ground. Parachutes are used to skydive from airplanes, to jump from very high places, and to help slow down the descent of spacecraft. Parachutes are also used to slow down some race cars. The early parachutes were made from canvas (a strong cotton cloth). Light-weight (but very strong) silk cloth was then introduced for parachutes. Modern-day parachutes use nylon fabric. The idea of using a parachute to fall gently to the ground was written about by Leonardo da Vinci (1452-1519). The first parachute was demonstrated by Louis-Sébastien Lenormand in 1783 of France - he jumped from a very tall tree carrying two parasols (umbrellas). A few years later, some adventurous people jumped from hot-air balloons using primitive parachutes. The first person to jump from a flying airplane (and survive the fall) was Captain Albert Berry, who jumped from a U.S. Army plane in 1912. Parachutes were first used in war towards the end of World War 1.

3.  Learn 5 things about ONE of these people and come prepared to share what you learned.

Sir Isaac Newton 1643-1727

James Gregory (1638-1675)

Christian Huygens (1629-1695)

Blaise Pascal 1623-1662

Know/Understand

Do 1 of the following, or both if you want.

1. Create an invention

Just use materials you have around your house for your invention.

If you need ideas, go to https://jam.com/auth Sign in with this info: 

nick name: koolky 

password: Happy12345  -- 

caps and lowercase matters!

You can use any of these inventions, or maybe they'll spur a new idea. 

Bring your invention to class to show off!

OR

2. Solve this Krypto:  Here are 5 numbers:

2, 4, 6, 7, 9

Your Target number is....67

Bring in your answer in correct mathematic equation form.

Rules: Using each of the 5 numbers ONLY ONCE, you may use any combination of addition, subtraction, multiplication or division to manipulate the 5 numbers in any order to reach the target number.

Example: if you had the 5 numbers: "8,4,1,6,3", you could reach the target number of 11 by doing: 3 x 4 + 1 - (8 - 6) 

There is always a way, usually more than 1, to reach the target number.

Use your commonplace book to record your trial and error. Record your equation and bring it to class!