relax, and beat your score!! CBMS
Jan 13, 2016
relax, and beat your score!!
CBMS
Mental MAth
Assume your positionS
Math Review
1) find the LCM of 15 and 45
2) Simplify : 1 14/20
3) subtract .45 from 3
4) solve 20y = 40
5) what is the divisor in 36 -:- 12 = 3?
Graphing day one
I can answer questions on graphical representations and data displays including bar graphs, circle graphs, frequency
tables, three set venn diagrams, tally charts, and line graphs that display continuous data.
There are many different types of graphs.
pie graph/ circle graph
bar graph - single or double
frequency tables
venn diagrams
Tally charts
line graphs
TRY TO LIST AS MANY AS YOU CAN ON YOUR SLATES
DID YOU HAVE ANY MORE??
Back to the basics - tally charts
HOW MANY STUDENTS
HAVE FRECKLES?
4!HOW MANY
STUDENTS DO NOT HAVE FRECKLES?
8!
Vocabulary
The new thing you need to know about tally charts it the
word frequency
FREQUENCY IS SIMPLY CHANGING THE TALLIES TO A NUMBER
THIS NUMBER CAN THEN BE USED TO MAKE MANY DIFFERENT TYPES
OF GRAPHS
What about double bar graphs???
out of football, basketball, soccer, and tennis... write your favorite on your slate (pick one!!)
FOOTBALL
BASKETBALL
SOCCER
TENNIS
FOOTBALL BASKETBALL SOCCER TENNIS
14121086420
I take data from the students and from their data, we make the bar graph on the board
I take data from the students and from their data, we make the bar graph on the board
Bar graphs
WHAT CAN you TELL ME ABOUT
THIS BAR GRAPH??
I have the kids come up and write in what they know on the lines
I have the kids come up and write in what they know on the lines
What about double bar graphs???
Now show me those slates again for a double bar graph
BoysFOOTBALL ____
BASKETBALL____
SOCCER____
TENNIS____
FOOTBALL BASKETBALL SOCCER TENNIS
14121086420
GirlsFOOTBALL____
BASKETBALL____
SOCCER____
TENNIS____
Question Time
IS MORE TIME SPENT WATCHING TELEVISION IN 3RD GRADE OR IN
4TH GRADE?
HERE IS 3RD GRADE...AT 120 MINUTES PER DAY
HERE IS 4TH GRADE...AT 60 MINUTES PER DAY
MORE TIME IS SPENT WATCHING TV IN 3RD
GRADE!
Question Time
IS MORE TIME SPENT WATCHING TELEVISION OR DOING HOMEWORK
IN 5TH GRADE???
HERE IS 5TH GRADE TIME ON HOMEWORK
HERE IS 5TH GRADE TIME ON TELEVISION
MORE TIME IS SPENT DOING HOMEWORK IN
5TH GRADE!
I DON’T THINK THEY SURVEYED OUR
SCHOOL :)
partner Time WHICH GRADE SPENDS THE MOST TIME DOING
HOMEWORK?GRADE 6
WHICH GRADE SPENDS AN EQUAL AMOUNT OF
TIME ON BOTH?
GRADE 4WHICH GRADES SPEND THE SAME AMOUNT OF
TIME WATCHING TELEVISION AS EACH
OTHER? GRADES 4 AND 5
partner Time HOW MUCH more TIME DOES 6TH GRADE
SPEND ON HOMEWORK THAN 4TH GRADE?
6TH = 90 MINUTES
4TH = 60 MINUTES
90 - 60 = 30 more minutes
Double bar graphs are not more work....
They just require reading the questions very carefully
SO READ....
RE-READ....
FIGURE OUT WHAT THEY ARE ASKING YOU...
THEN SOLVE!!
Slate time: answer the following questions on your slates
1. WHICH CLASS HAS THE MOST MALE
STUDENTS?ROOM 302
2. WHICH CLASS HAS MORE GIRLS THAN
BOYS?ROOM 303
3. HOW MANY MORE BOYS DOES ROOM 302
HAVE THAN ROOM 303?
3 MORE BOYS
4. WHICH ROOM HAS THE BIGGEST
DIFFERENCE BETWEEN BOYS AND GIRLS?
ROOM 301
5. WHICH CLASS HAS THE MOST STUDENTS
ALL TOGETHER?
ROOM 302
6. HOW MANY LESS GIRLS DOES ROOM
301 HAVE THAN ROOM 303?
4 LESS GIRLS
* CHALLENGE: HOW MANY MORE BOYS ARE THERE THAN GIRLS IN ALL OF 5TH GRADE?
7 MORE BOYS
closure
On your slate, describe the main difference between single bar graphs and double bar graphs
SINGLE BAR
GRAPHS
DOUBLE BAR
GRAPHS