CER - Claim Evidence Reasoning

In this video Paul Andersen explains how the CER framework can be used to give explanations in a science classroom. In order to make a complete explanation a Claim must be supported by Evidence and Reasoning connecting the evidence to the claim.

Music Attribution

Intro
Artist: CosmicD
Creative Commons Atribution License

Outro
Title: String Theory
Artist: Herman Jolly

All of the images are licensed under creative commons and public domain licensing:

[rosegrey]

anyone’s teacher making them take notes on these rather than actually teaching their class??

[LitoDaBurrito]

who else had to watch this for homework?

[michaelkankolenski]

Too many times students want to just " regurgitate" information without truly understanding what they are doing. I plan on using more of this claim, evidence, reasoning as a vehicle for students to demonstrate their knowledge and understanding. Thanks again Paul for all the great resources. See you next week at STANYS.

[stanmartin]

I really like your video and appreciate not only how you break down CER, but also how you apply it to increasingly interesting examples.
I know that CER is not your acronym, but may I suggest an update: QERC. As we work our way through a procedure it is much easier if that procedure is written in a logical order, so that we can follow it step by step. If what we want is to have students work their way through this process, let's have them start at the beginning, by analyzing the question. Likewise, let's put answering the question off to the end of the procedure, after we have done the work. Part of what we are trying to do with the CER (QERC) process is to break the cycle of fast thinking (Daniel Kahneman) and apply evidence and reasoning before the answer. So, analyze and define the Question, gather your Evidence, apply your Reasoning skills, and finally state your Claim. QERC your way to a meaningful answer.
One more thought. Students should not be doing this to score well. They should be doing this to build and communicate their understanding.
Thanks for your excellent video.

[Dysanii]

If you want a tip when taking notes from a video: Put the video in 2x speed, you can understand it all (if not put it slower) and it’s just a quicker way of taking notes. If you get good at it, you can even watch videos in 3x speed, that is if the website supports it. Hope this helps and saves everyone some time on school work!

[mr.swaney]

Since I can't find anyone who took a stab at the CER for the last example, here's my attempt:
Claim: During a phase change the energy goes into or comes from changing the substance into a new state of matter.
Evidence: Even though the water kept getting heated the water's temperature stayed stable at around 100 degrees Celsius when the liquid water was changing into a gas.
Reasoning: Since energy can't be created or destroyed (high school: Conservation of Energy), the energy given to the water as heat must go somewhere, into some form of energy for the H2O. Since the water's temperature does not continue to increase while it turns into a gas, the energy does not go into raising the water's temperature (high school: does not go into increasing its average kinetic energy). The energy must go into turning the water into steam. That is, being a gas must be a higher energy state than being a liquid. (High school: The energy must go into some sort of potential energy so that the steam has more potential energy than the liquid water does.)

[karyon]

Thanks! We've really been pushing this at my school, and the students still struggle with reasoning. Hopefully this video will serve as another helpful resource for them. I have a lot of students who love the way you explain things, so thank you and keep up the great work!!!

[agnitamoore]

my grandaughter has been searching the whole web on how to make a graphic organizer, and this is the video that we were looking for. ty

[esandler]

Paul did a great job providing explanations for teachers on how to use CER in their classrooms. I will share it with my fellow teachers. Thank you!!

[yasiazad]

My teacher gives me school work without teaching it .—.

[it.b]

10th-grade chem, anyone? (in 2020 during the pandemic?)

[BadBoyZeropuqGamingAnimation]

pov: your annoying science teacher assigned this to you

[FollowerofDuck]

had to take notes on this as part of my ap bio summer work

[johnlord]

A most excellent presentation, and how (a lotta) current "science" is falsely based upon conjecture, models (that can be tweaked to prove opinions), and absolute axiomatic words of "coulda, woulda, shoulda, can, will, therefore, then, -IF-, maybe, might, ....). Amazing that (a lotta) modern science is not built up from facts, is actually "reverse engineered" to prove opinions and hypotheticals that are then supposedly "expert based."

[thevibestation]

I have a chemistry lab report due soon and this helped a lot.

[kayleighandchristopherwill]

thank you. You have no idea how helpful this is.

[HasinaHr]

I was thinking of the first law of thermodynamics, where variation of energy (therefore, variation of temperature) equals to added heat minus the work of the system.

One obvious evidence is the variation of volume during phase change. This implies the particles are expanding, meaning they occupy more space, and therefore each particle is traveling a longer distance and thus doing more work.

So according to that first law, even if temperature is added, if the system does more work, the energy doesn't vary that much, or doesn't vary at all, and the temperature won't raise.

[yingcao]

So helpful I thought I would've got all of it wrong but then I got a 100%.Thank you

[luveely]

ugh, had to watch this for notes, anyone else?

[jungekim]

Wow, that was so clear and well organized! I teach middle school science and your video lifted some of my fears about teaching CER's. Thanks!