Algebra Readiness Made Easy Grade 5

A

L

G

E

B

RA

READ

IN

E

S

S

5

BIRTHDAY BOGGLE

• Look at Clue 2. What is the greatest number

that M can be? (11)How did you figure it out?

(M is less than 12 and the greatest whole number less

than 12 is 11.)

• What numbers are on Ima’s list? (5, 6, 7, 8, 9,

10,and 11.)

• What numbers on Ima’s list are eliminated by

Clue 3? (All numbers except for 5 and 10.)

• Which numbers does Clue 4 eliminate? (10)


• How can you check your answer? (Replace each

Min the clues with its value. Be sure that the state-

ments are true.)

Work together as a class to answer the questions

in “Solve the Problem: Birthday Boggle.”

Math Chat With the Transparency

Display the “Make the Case: Birthday Boggle”

transparency on the overhead. Before students

can decide which character is “on the ball,” they

need to figure out the answer to the problem.

Encourage students to work in pairs to solve

the problem, then bring the class together for

another whole-class discussion. Ask:

• Who has the right answer? (Bobby)


• When was Mary Cassatt born? (May 22, 1944)


• How did you figure out the value of P? (From

Clue 1, P can be 1, 2, 3,.. ., or 25. Clue 2 elimi-

nates all odd numbers. Clue 3 eliminates all even

numbers except for 20, 22, and 24. Clue 4 eliminates

20 and 24. So, P = 22.)

• How do you think Sally got 20? (20 fits clues 1, 2,

and 3. Sally probably forgot to use Clue 4.)

• How do you think Buddy got 24? (24 fits clues 1,

2, and 3. Buddy probably forgot to use Clue 4.)

32

Name _____________________________________________ Date __________________

BIRTHDAY BOGGLE

33

I’ll start with Clues 1 and 2 , and

make a list of numbers for M. The

first three numbers are 5, 6, and 7.

1.What are all of the numbers on Ima’s list?

_____________________________________

_____________________________________

2 .Complete the date. Neil Armstrong was born on August _______ , 1930.

3.How did you figure out the birth date? ________________________

______________________________________________________

4 .Check your number with the clues. Show your work here.

SOLVETHE

PROBLEM Neil Armstrong was a test pilot and commander of the spacecraft

Apollo 11. He was the first person to touch the moon’s surface.

Neil Armstrong was born on August M, 1930.

The letter Mstands for the date that Neil

Armstrong was born.

Use the clues to figure out M.

CLUES:

1) M+M+M≥ 15

2 )M< 6 x 2

3 ) 5 is a factor of M.

4) M≠ 10

Ima Thinker

Algeb

raR

eadin

essM

adeE

asy:

Gr.^5

©^20

08 b

yGr

eene

s,Fin

dell

&C

avan

agh

,Sch

olas

ticT

each

ing

Reso

urce

s

BIRTHDAY BOGGLE

Name _____________________________________________ Date __________________

(^34) Who is on the ball?
MAKETHE
CASE
Sally Soccer Bobby Baseball
Buddy Basketball
Mary Cassatt was a painter and printmaker. She is most famous
for her paintings of children. Mary Cassatt was born on
May P , 1844.
The letter Pstands for the birth date.
Use the clues to figure out P.
CLUES:

1. P≤5 x 5


2. P÷2 has a zero remainder.


3. The sum of the tens and ones digits of
   Pis an even number.


4. The difference between the tens and ones digits is less than 2.
   As an artist in
   my spare time,
   I am certain
   that Pis 20.
   Using our two
   brains, we
   are sure that
   Pis 22.
   You don’t
   have to be an
   artist to know
   that Pis
   clearly 24.
   Alge
   braR
   eadin
   essM
   ade
   Easy
   :Gr.
   (^5) ©
   (^2008)
   byG
   reen
   es,F
   inde
   ll&
   Cava
   nagh
   ,Sch
   olast
   icT
   each
   ing
   Reso
   urce
   s
   Algebra Readiness Made Easy: Grade 5 © Greenes, Findell & Cavanagh, Scholastic Teaching Resources