Hi everyone,
Today I want to share with you a math game that I had
modified to my own design to help students become aware of the "greater
than" "less than" concept. This game is best played at a first
or second grade level, as an opening lesson to develop the terminology and
basic knowledge of these two phrases.
The materials that are required for this lesson-game are as follows:
· - A sheet of "Guess My Number" board
201-300, for each student in the class
· - A blank sheet of paper
· - Doc-cam/projector , in order to project your
board at the start of the lesson
·
- Blocks, chips or other game/counting pieces
Once you have the materials, you can follow the
steps and provided questioning that I have below. This lesson-game can also be modified
to fit into any classroom environment. This lesson-game is separated into three
key components; a "Launch, Explore, and Summary" portion. I will have
each portion labeled as I walk through the game.
The Launch:
Have
students will meet in an area that they can all see the projector or board, but
also collaborate with one another to complete a task you will be posting
shortly.
Show
the students the 201-300 and ask them to guess your number in 5 guesses. Make
sure to only play the game once to get the students attention, you want to make
them lose this round.
Here are some questions you could ask:
"Alright class so who can tell me what this is?"
"Great! Now I am thinking of a number between 201 and 300. I will write it
down and put it under this sheet of paper so my number won't change."
"can you guess my number in 5
guesses!"
"What is your first guess"
This will continue until all five guesses are answered. While the students
guess, Make sure to mark off the numbers they guessed that were wrong with
counters/chips, to show the remaining numbers. This will come in handy later,
and it will also keep your number a mystery. Once the class runs out of guesses
send them back to their seats for the exploration phase.
The Exploration:
Inform the students that they will move from
working as a whole class trying to solve the number you had, into pairs in
order to guess one another's number.
Here are some phrases you could say:
"Now that you have all tried to get my number, you will be able to try and
guess each other's number in partners!"
"What I want you to do is play this game
until you guess each other's number."
"When you begin to guess your partner's
make sure you cross off all the numbers within your guess."
"Can someone explain what I mean?"
(If no one can explain, provide them with a
possible example without giving away the main point. Say something along the
lines of 'if I was to guess someone's number I could ask if it was in the tens
column, and if it wasn’t I could cross off all of the numbers in the tens
column').
As students are playing the game, you should
be walking around the room to see which students are heading in the direction you
want to go with the lesson. Look for students who seem to be asking questions
that relate to using greater than or less than terminology or similar
terminology (i.e. bigger than/smaller than). This will show if you notice that
the students are able to mark off several rows and columns of numbers at once
from one question such as asking if their partner's number is greater than or
less than fifty.
The students will play the game two to three
times, as in order to make sure that what they are asking allows them to
quickly guess their partners number.
The Summary:
Bring the class back together to where they
were for the launch portion. Here you will discuss some of the solutions the students
found to get their partner's number in the fewest number of guesses.
Here are some phrases you could say:
"Okay class so what have you noticed
about trying to guess your partners number?"
"Are there any ways that you found that
could get you to the answer with the fewest number of guesses?"
"What are some of those questions you
asked about the numbers?"
During this process, make sure to ask the students
to explain the questions they used and you write them on the board. Whenever
there is a question that was already mentioned, place a tally next to it on the
board. Once everyone had time to give the questions they asked, ask them which
two questions (or one depending on how the question was phrased) did every pair
have in common. The answer to this question will be using the greater than and
less than phrases. Ask the students the following questions.
"What happens when we ask if someone's number is greater than or less than
a certain number?"
"If we go back to my number what are
some question you could ask to finally guess my number?"
"If I give you four more guesses could
you guess my number?"
At this point, the student will guess your
number by using the knowledge of greater than
and less than terminology in the fewest
number of guesses.
And that is how to utilize an easy math game, to
develop a brief understanding for greater than and less than concepts, and
preparing them for the unit. I hope you enjoy the game!
Have a great week everyone!