LOOK!! I'm upside down!!!!!

 A CONVEX mirror is when the mirror is outward.
A CONCAVE mirror is curved in.

Think of a spoon. Have you ever looked at yourself in a spoon? When you look at the curved out end, you see yourself streched out a bit. If you look at yourself in thr curved inward side you see your self upside down. Just a little example of a convex and concave mirror.


uploaded by: Sir Isaac Newton uploaded: 2011 Url:http://laurenwedding.edublogs.org/2011/10/27/april-sir-isaac-newton-concave-and-convex-mirror-experiment/

Is it a plane, is it a bird, no it's an eye

We did notes about the different parts of the eye. We started an eye diagram about different parts of the eye: Sclera, Cornea, Iris, Pupil, Lens, Retina



 

Uploaded by Mighty Optical Illusions uploaded in 2013  http://www.moillusions.com/hungry-eye-optical-illusion/

Mathlete Friday

uploaded by: unknown uploaded: 2014 http://www.zazzle.com/mathlete_t_shirt-235010292234645426


Can you guess what it is? YAYA!!! You guys guessed it!!! It's mathlete friday!!!! Plus everyone loves a friday!! A double plus is that it's also very nice outside!!! Today is just a wonderful day!! I hope you are having a great day like I am!!



uploaded by: Girl suff uploaded: 2013 http://astoldbylaura.wordpress.com/category/girl-stuff/

Everytime I hear mathele, I always think of this!! What do you guys think of?

Just a little cute quote. Well this is the last one! i hope everone has a very good friday! uploaded by: unknown uploaded in 2014 http://funny-pictures.picphotos.net/math-funny-quotes-8-math-funny-quotes-9/doblelol.com*thumbs*math-funny-quotes_4790324088997434.jpg/

Bill Nye, Eyeballs

    Today we watched a Bill Nye video about eyeballs.

We also had questions to go along with the video,  try and solve them, (answers below).
1.Nerves connect the eyeballs to the ________________
2.The iris controls the amount of _____________ that goes into your eyes.
3.The eye gets protection from the eyelid/eyebrow(Choose one).
4.The ____________ nerve is about 20cm long.
5.If the eye is out of focus then images appear__________.
6.The ____________ changes shape sothat the eye can focus.
7.Rods and cones are the cells/nerves that make the image on the retina
8.Cones allow the eye to see___________ and bright light.
9.Colourblindness means there is plenty/not enough light sensitive pigments on the retina.
10.Being________ dose not stop people from doing things like walking or playing.
11.The eyes__________ to see how for away or how close an object is.
12.If you lose an eye, a doctor can make an_________eye.
13.Above the eyelid are glands that produce__________.
14.An optical___________is your brain and eyes playing tricks on you.
15.The eyeball is the___________of a ping pong ball.









ANSWERS
1.brain
2.light
3.eyelid
4.optic
5.blurry
6.lens
7.cells
8.colour
9.plenty
10.blind
11.cross
12.artifical
13.tears
14.illusion
15.size

Video All Stars

Getting it together would help make it better
We liked the comedy/entertainment
We didn't like that we couldn't retry it


What we could have done better: Timing
What we did good: Have fun!


We liked the entertainment.
We disliked the time limit.

*We have one group whose video is not completed yet, but will be shown soon!
The man is explaining what it looks like when you mix colours, like red and green, and blue and green.

Blue, green, red, yellow,white ,purple.They are taking some colours away to make different colours. I like it they are funny.

Centers

Today in class we did two out of four centers, the centers were, make a movie about colour, and the other one was Benham’s Top. Make a movie was just a movie with background music and the four groups record their voice over one of Bill Nye’s videos. The videos will be put on one of the next blog posts. Benham’s Top was just cutting out a circle, half white half black. The white side had little round lines that looked like circles when it was spun. When the disc is spun arcs of pale colours are pattern induced, flickers are visible at the different places on the disc. Each person had seen a different colour, because no one has the same type of eyes. One person saw red and purple, another saw blue on the outside but brown in the middle, and someone else saw blue on the outside and red in the middle. If it does not work with the paper, go to Wikipedia under Benham’s Top.

Mathlete Friday!!!!!! #Fun

Did you know that...

π=3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899 86280 34825 34211 70679 82148 08651 32823 ...

1. A sphere has two sides. However, there are one-sided surfaces.
2. There are shapes of constant width other than the circle. One can even drill square holes.
3. There are just five regular polyhedra
4. In a group of 23 people, at least two have the same birthday with the probability greater than 1/2
5. Everything you can do with a ruler and a compass you can do with the compass alone
6. Among all shapes with the same perimeter a circle has the largest area.
7. There are curves that fill a plane without holes
8. Much as with people, there are irrational, perfect, complex numbers
9. As in philosophy, there are transcendental numbers
10. As in the art, there are imaginary and surreal numbers
11. A straight line has dimension 1, a plane - 2. Fractals have mostly fractional dimension
12. You are wrong if you think Mathematics is not fun
13. Mathematics studies neighborhoods, groups and free groups, rings, ideals, holes, poles and removable poles, trees, growth ...
14. Mathematics also studies models, shapes, curves, cardinals, similarity, consistency, completeness, space ...
15. Among objects of mathematical study are heredity, continuity, jumps, infinity, infinitesimals, paradoxes...
16. Last but not the least, Mathematics studies stability, projections and values, values are often absolute but may also be extreme, local or global.
17. Trigonometry aside, Mathematics comprises fields like Game Theory, Braids Theory, Knot Theory and more
18. One is morally obligated not to do anything impossible
19. Some numbers are square, yet others are triangular
20. The next sentence is true but you must not believe it
21. The previous sentence was false
22. 12+3-4+5+67+8+9=100 and there exists at least one other representation of 100 with 9 digits in the right order and math operations in between
23. One can cut a pie into 8 pieces with three movements
24. Program=Algorithms+Data Structures
25. There is something the dead eat but if the living eat it, they die.
26. A clock never showing right time might be preferable to the one showing right time twice a day
27. Among all shapes with the same area circle has the shortest perimeter
28. Curves of infinite length may enclose finite areas.
29. Falsity implies anything.
30. There is order in chaos.
31. To get cafe au lait one should carry coffee to milk and not milk to coffee.
32. Sets may be thick, thin and normal.
33. In some circumstances index equals the content.
34. In other circumstances, an index may have a content of its own.
35. There are things distant yet near. There are others that are near yet distant.
36. There are three plane regions that share exactly the same boundary.
37. A continuous additive function must have the form f(x)=ax. Discontinuous linear functions look dreadful.
38. A continuous function may grow considerably virtually without changing.
39. You can't add apples and oranges but you can add their shapes.
40. There are many things that can be added: numbers, vectors, matrices, spaces, shapes, sets, functions, equations, strings, chains...
41. Among any two integers or real numbers one is larger, another smaller. But you can't compare two complex numbers.
42. The only triangle with rational sides and angles is equilateral.
43. 0!=1
44. One is morally obligated to do everything impossible.
45. The word 'fraction' derives from the Latin fractio - to break. However, there are continuous fractions.
46. For every object there is a distance at which it looks its best.
47. At any given time in New York there live at least two people with the same number of hairs.
48. Sometimes in order to add one has to take the difference.
49. Demographic tests show that the person least likely to buy Wired magazine is an American schoolteacher.
    51. Complex numbers are in a sense perfect while there is little doubt that perfect numbers are complex.
    52. You can position 10 defenders of a square castle so that on every side there will be 5 men.
    53. There are many things that can be multiplied: numbers, vectors, matrices, functions, equations, sets, pegs...
    54. A torus may be brushed smooth but a sphere can not.
    55. A circle may be quite useful in drawing straight lines.
    56. In the sequence of all integers, there are arbitrary long runs with no primes.
    57. With just one caveat, anything you can do with a compass and a ruler you can do with the ruler alone.
    58. There are really impossible things.
    59. You can add apples and oranges.
    60. Complex number to a complex power may be real.
    61. Irrational number to an irrational power may be rational.
    62. There are trisectable angles that are not constructible.
    63. There exist triangular numbers that are also square.
    64. No two integers are equidistant from the square root of 2
    65. Almost every integer has a digit 3 in it
    66. C₀ - C₀ = [-1, 1]
    67. The length of the diagonal of the unit square equals the square root of 2
    68. Every composite number is the product of some factors and also the some of the same numbers
    69. Simple quadrilaterals tessellate the plane
    70. There is a simple solution to the affirmative action problem
    71. Two simple polygons of equal area can be dissected into a finite number of congruent polygons
    72. cos(36°) = (1 + √5)/4
    73. 1/3 + 1/4 = 7/12
    74. Σ2^-n = Σn·2^-n
    75. Bisector of an imaginary angle may be real
    76. Any infinite set contains uncountably many nested subsets
    77. Some numbers are lucky. 13 is one
    78. How to write an equation of the union of two sets
    79. Altitudes have ears, foot, stem, and root

found at http://www.cut-the-knot.org/do_you_know/index3.shtml 2014