Snapshot 6.5. Making Inferences Using a Graphic Organizer
Integrated ELA/Literacy and Science Lesson in Grade Seven
Mr. Schoen’s seventh-grade science students are sitting in pairs, each pair with a
science article and a blank graphic organizer. The article has five adhesive tape flags placed
strategically throughout it, and the students have already read through the relevant section of
the text for today’s demonstration once. The graphic organizer, a table, contains six rows with
three columns labeled: The Demonstration Showed, I Know, and Inference.
The Demonstration
Showed
I Know
(from texts and
background knowledge)
Inference
Mr. Schoen explains, “Today, we are going to observe a chemical reaction. You’re going
to use information from the text you read. You will need to link what you read with your
background knowledge of acids and bases to make inferences. Who remembers what an
inference is?” He calls on a student who explains that, “It’s a conclusion you draw from
evidence and reasoning.”
Mr. Schoen adds conclusion drawn from evidence and reasoning to the third column
heading and continues, “Well said. Who knows how you make an inference or what you use
to come to your conclusion?” Another student answers, “You use what you read and what you
know for the conclusion or inference.” “That’s right. You use what you read in the text and
connect that to information that you already know, or your background knowledge, to make
an inference,” replies Mr. Schoen. “Who can give me an example of an inference?”
“I infer we will use Bunsen burners today because they’re sitting out on the lab bench,”
noted Arial.
“Great example,” says Mr. Schoen. “You’ve made a conclusion based on an observation.
Making inferences is really important when you’re reading because sometimes the author does
not explicitly state important information. So, making inferences will help you understand
what you are reading. But making inferences is also important when investigating scientific
phenomena. You need to integrate the evidence based on what you observe, what you read,
and what you already know to make an inference.”
Mr. Schoen moves to a lab table where the materials for a chemistry demonstration
are laid out. After putting on a lab apron and goggles he says, “I want you to watch the
demonstration and think about what you can infer from what you observe. We have a beaker
with 200 ml of distilled water. I need a student volunteer to add 5 ml of bromothymol blue.”
Mr. Schoen calls a student to don goggles then add the bromothymol blue solution. Mr. Schoen
continues: “Bromothymol blue is an indicator. Can anyone tell me how an indicator is used in
chemistry?” He chooses a student who responds, “It’s used to show when there’s a chemical,
or when that chemical changes.”
Grade 7 Chapter 6 | 585