good that comes out of a jar is a dill pickle! Try one with a slice of deli ham
wrapped around it. Wash it down with something sweet to drink, like cranberry
Different sizes of containers
Your choice of items to fill them:
racquetballs, golf balls, ping pong
balls, walnuts, cotton balls, pine cones, marbles, wrapped candy, etc.
Scrap paper, pencil and can at each
Ruler to measure volume of
One of the most important math skills is estimation.
We estimate numbers and quantities all the time in adult life. So it's a great
thing for kids to practice.
You can do one or more estimation jars as you have
time and materials. It might work to have five different "estimation stations"
and let the students rotate. If you
have a lot of students, they could work in pairs, or do a separate activity to
give everyone time to make the estimates and temporarily fill the containers.
You could leave an empty can, scraps of paper and a
pencil at each estimation station. Before they fill the jar, ask the
students write down their guesses of how many of the same object they can get
into the jar onto a piece of scrap paper, fold it up, and place it in the can.
Each guess should include the student's name as well
as the guess. Afterwards, the students can compare who came closest.
Each session at the estimation stations should take
just a couple of minutes. Encourage the students to neatly empty the objects
back out so that the next student has no idea how many to guess.
You can wrap up by talking about volume, which is
measured by height x length x depth, and how the students could use an estimate
of each individual object plus an estimate of the container's overall volume to
come up with a more accurate estimate.