ENGAGE
The teacher will provide a myth about
crickets, and some statistics about the
number of certain endangered animal
species. The question is posed “How
do scientists count ?”
Students will be drawn into this lesson
by making a Venn diagram comparing
crickets and grasshoppers.
EXPLORE
The teacher will provide students with
paper the contains different colored
dots, and at the right time, an
overhead transparency with a 1
square inch grid.
The student will use the grid to
estimate the number of dots on the
paper.
EXPLAIN
The teacher will encourage students
to share their findings by recording
them on the white board.
The students will share their findings
and explain the process that was
used to find their estimates. They will
come up with the strategy to be used
to estimate the number of crickets in
the school yard.
EXTEND
The teacher will help students set up a 10
by 10 meter grid using stakes and rope to
make one by one meter squares.
The student will use the strategies
discovered in the explore time to
estimate the number of crickets in the
100 square meter area. Then students
will be asked to use proportionality to
predict the number of crickets in a larger
area.
EVALUATE
The teacher will instruct the student to
take the mathematical data and
graph it .
The student will determine if the
population is evenly distributed, why
some places may be more populated
to the other and is the graph based
on the data accurate and why?