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