Summary
Students will participate in a set of observational experiments, designed to help them come up with "good" evidence to back a claim they present. Students will learn about how to overcome flawed predictions with evidence and design good reasonable explanations.
Essential Question(s)
How do scientists obtain evidence to back their claim and reasoning?
Snapshot
Engage
Students begin by observing different aliens around the room.
Explore
Students collaboratively hypothesize a possible explanation of the aliens' behavior.
Explain
Students design a list of good ways to collect evidence to support claim and reasoning.
Extend
Students investigate Roly Poly's behavior making a claim backed by evidence and reasoning.
Evaluate
Students prepare a poster with their claim, evidence, and reasoning and participate in a Gallery Walk.
Materials
A dozen variations of four different types of aliens (48 aliens in total)
"Alien Invasion" script
Alien Observation Sheet
Roly Poly Lab handout
Choice Chambers (or petri dishes cut and pieced together)
Material of choice for roly poly
Poster paper
Engage
Begin by using the "Alien" and the "Alien Invasion" documents to set the aliens up around the room. Once the aliens are ready, students will enter the room. Make sure to tell them not to disturb the aliens. Students will need to take a sheet of paper to record observations they make.
Explore
Once they have finished observing, have students go back to their desks and do an I Think, We Think individually. Using their observation notes, ask students to write down any patterns/trends they believe the aliens are showing and why.
Then pair them up and have them discuss and come up with a group trend for each alien, writing their group claim on the observation sheet.
Explain
As a class, reveal the groupings to the students and see how many got them right and how many got them wrong.
Then, do a modified 4-2-1, where each pair of students comes up with two things they did "well" and two things they did not do as well on. Have the pairs then join with another pair, forming groups of four, and have them come up with the thing they all did mostly well and the thing many of them got wrong. Once finished, have students individually write on what makes a good observation and what makes a bad observation. Once finished, have them share with the class their thoughts.
Extend
Give students individual copies of the "Roly Poly Lab." Ask them to observe normal Roly Poly behavior and make a claim, which they then will have to design an experiment to research. Have them gather new evidence and decide whether their observations/evidence support their claim or not and, if not, instruct them to make a new claim.
Evaluate
Give each group of students a sheet of posterboard or oversized paper. Ask students to prepare a Research Poster about their Roly Poly experiment. Stress that they need to include information about their claim/hypothesis on their Roly Polies using their evidence and reasoning. When they are done, have them hang the posters around the room.
After the posters have been hung, ask students to participate in a Gallery Walk where, as they look over their classmates' posters, they put sticky notes on the posters that say whether they agree with their classmates' claims based on the evidence or disagree and why. Once they have completed the circuit and have returned to their own posters, have students read the feedback that was left for them on the sticky notes.
Resources
Carolina Science Online. (n.d.). Terrestrial Isopods. [Web page.] https://www.carolina.com/isopods/terrestrial-isopods-pill-bugs-sow-bugs/FAM_143060.pr
K20 Center. (n.d.). 4-2-1. Strategies. https://learn.k20center.ou.edu/strategy/142
K20 Center. (n.d.). Gallery walk / carousel. Strategies. https://learn.k20center.ou.edu/strategy/118
K20 Center. (n.d.). I think / We think. Strategies. https://learn.k20center.ou.edu/strategy/141
K20 Center. (n.d.). Research poster. Strategies. https://learn.k20center.ou.edu/strategy/49
McCormic. (n.d.) Alien invasion. Miss McCormic's Website. [Web log]. Rhttps://missmccormic.weebly.com/uploads/1/0/1/2/10125307/alien_invasion.pdf