2D Shapes
3D Shapes
Arrays
Fractions
Measurement
Think about it!
100
I have 3 sides, 3 vertices, and three angles. What am I?
A triangle
100
All my faces are squares. I am the shape of dice and sometimes ice. What am I?
A cube!
Bonus 25 points: How many square faces does a cube have?
100
True or false:
Rows are the same thing as columns
False: They are different.
Bonus 25 points: Explain how they are different.
100
True or False:
A fraction is part of a whole.
Yes! Fraction literally means a part of something.
As in : If you remember even a fraction of what we learned this quarter, I will do a
100
True or false:
The only thing we can measure is length.
False!
Bonus-10 points for each additional thing you can think of that we measure:
100
True or false
A vertex (or vertices) means the same thing as a face in 3D shapes.
False! A Vertex is a corner (vertices means more than one corner)
200
Name 3 shapes that have 4 sides, 4 corners and 4 vertices.
Possible answers:
square (quadrilaterals-)
rectangle "quad"=4
trapezoid
rhombus
200
I have 0 faces, 0 vertices and and 0 edges, which makes me a perfect shape for a ball! What am I? (Don’t be afraid to answer 😀)
A sphere! (S-fear)
200
What equation or number sentence could I write to represent this array? Bonus 25 points for both ways.
This array has 3 rows of 4 tiles so I can say:
4 + 4 + 4 = 12 OR 3 x 4=12
200
A fraction should always be:
a. cut into (or represent) equal pieces or groups.
b. pie
c. more than 1
A. If a shape or group of things is not equal-it is NOT a fraction.
Bonus 25 pts: Which of these shaded objects represent a fraction of the whole?
200
To measure the length of something, we always have to
a.Think really hard
b. line up the end of the item with the start of the measuring tool.
c. have big feet
B. We alway have to start at the end or edge to measure accurately.
200
Do you agree or disagree with this statement:
Some shapes can be made out of other shapes. Explain!
Yes! Some 2D and ALL 3D shapes are made out of other shapes.
Examples of 2D Shapes (10 point bonus)
Examples of 3D shapes (25 point bonus)
300
I have siX straight sides, siX vertices and siX angles. I am a ______________.
I am a heXagon!
(remember-the number 6 has an X and so does hexagon!)
300
A 3D shape with only one circular face , one vertex or corner, and no edges is a _______. (Hint-it makes it easier to hold your ice cream!)
A Cone!
300
On your whiteboard or with tiles, show an array that is 5 rows of 3.
There should be 5 rows, each with 3 in it.
300
If I have a square cut into 4 equal pieces and give one away, how much of the square did I give away? How much do I have left?
I gave away 1/4 and have 3/4 left.
1/4 + 3/4 = 4/4= the whole
300
How many inches in a ruler. What is another name for 12 inches when we measure? (Hint: You have one at the end of your leg).
A ruler has 12 inches. Each one is called a "foot"
300
An attribute is
a.the same thing as a peanut butter and pickle sandwich.
b. a really cool video game
c. A way to describe and sort things.
C. Of course!
Bonus 25 points:
Describe 3 attributes of a hexagon.
400
What is a Polygon? Draw an example of a Polygon and an example of a "not-polygon". (Don't let Bob out!)
A polygon is any closed shape with all straight sides. It can any number of sides. (3 or more)
400
Find something in the room that is a rectangular prism
Possible answers are
supply box, kleenex box, table
Must look like one of these (or a cube).
400
What is an array and why do we use them in math?
Arrays are an arrangement of objects in EQUAL rows and colums. We use it to ORGANIZE groups of objects so we can find out how many there are more easily. It is the model for multiplication.
400
True or false.
If I have 2/4 of a graham cracker, it is the same as 1/2 of the graham cracker.
True!
2/4 is equal (equivalent) to 1/2
400
Rulers sometimes also have centimeters on them. Is a centimeter bigger or smaller than an inch?
A centimeter is smaller. There are about 30 of them on a 12 inch ruler.
400
Do you agree or disagree with this statement?
All squares are rectangles, but not all rectangles are squares. Explain your answer.
It is true that all squares are also rectangles because the definition of a rectangle is a 4 sided shape with all straight sides and square or right angles. Opposite side are parallel and the same length.
All rectangles are NOT squares, however, because a square needs all of its sides to be the same length and all rectangles do not have equal sides.
500
Which one of these is NOT a 2D shape?
a. square
b. rhombus
c. circle
d. peanut butter sandwich with a pickle on top.
Peanut Butter Sandwich with a pickle on top (of course!)
500
What is the difference between 2D and 3D?
2D has length and width but 3D also has height.
Bonus 25 points: What does the D mean in 2D and 3D?
500
Name an array in real life that we may see every day. If possible, write the equation for the array.
Possible answers"
Eggs in a carton-2x6 or 6+6 = 12
cookies on a cookie sheet- 3x 4 or 3 + 3 + 3 + 3=12
500
True or false?
The more pieces I cut something into, the bigger each piece is.
In other words. 1/8 is bigger than 1/2.
Explain
False: The more pieces an object is cut into, the smaller each piece. The bigger the number of pieces (denominator) the smaller the part.
500
If I am measuring the length of the room it would be much easier to use:
a. Inches
b. feet
c. centimeters
b. Feet!
The smaller the unit, the longer it would take?
Bonus: If we used a yardstick, how many feet could we measure at a time?
500
Brain Dump!
Name one thing you have learned in Number Ninjas this quarter!
10 Bonus points for everyone who says something that has not been said by anyone else.