Lesson (3x): Cellular Respiration set


  • Do Nows (3 questions each) for each lesson

  • Gallery walk of average family’s weekly meal around the world

  • 1 full lab investigation w/ procedure, data charts, & questions

  • 1 extension lab investigation

  • Organizes cellular respiration by input & output

Time: 3 lessons (~70 min each)
Goals: NGSS HS LS 1-7
Essential question: What happens when humans get tired?


Lesson 1: Sugar

Lesson Question: How do humans get energy from food?

Lesson 2: CO2 output

Lesson Question: Does your body produce more/less CO2 when you exercise?

Lesson 3: O2 input

Lesson question: How does O2 affect your cell's energy?


  • Do Nows, 2 lab investigations with analysis questions, note-taking

  • Next iteration will add a rubric and more scaffolded examples of a nutritional plan


  • Created whilst at the Exploratorium’s Summer 2018 Teacher Institute, using their generous support and resources

  • Hungry Planet: What the World Eats by Peter Menzel

  • coaches at the Exploratorium Summer Teacher Institute (Daisy, Devin, & Katie)

Lab: Exploratorium's Ocean Acidification In A Cup

Time: 60 min

Goal: Model an ocean-atmosphere interaction and explain how carbon dioxide gas diffuses into water, causing the water to become more acidic.


  • Lab worksheet (instructions, questions, etc.)

  • Slides for Exploratorium’s Ocean Acidification In A Cup

  • Videos with timers, safety review, and lab procedure demo, applications to coral bleaching, etc.

Note to self: (To Do) add inquiry-driven portion for students to devise questions together (requires more chemistry than mere carbon cycling stations activity)


Lesson (2x): Claim-Evidence-Reasoning

Time: 55 minutes + 70 minutes


  • Identify the claim, evidence, and reasoning in a scientific explanation.

  • Identify relevant evidence to support a scientific explanation, using real NASA photos from Mars.

Additional Prep Required: download external materials from here

Agenda (Pt 1, 55min)

  1. Do Now

  2. Video: Dad is an alien!

  3. Slides: Explaining Science - CER

  4. CER: Penny

  5. Solo: Analyze

  6. Pairs: Peer Review


Formative (CER: Analyze; Mars check-ins); Summative: Mars Spoken Explanation

Agenda (Pt 2, 70min)

  1. Do Now

  2. Video: Are cats liquid or solid?

  3. Slides: Claim - Evidence - Reasoning

  4. Activity: Identifying Relevant Evidence…on Mars!

  5. Pairs: Peer Review


Learning Design Group, Reteaching Loop: Understanding the Role of Relevant Evidence in Supporting a Claim

copyleft notice:

You are free to copy and adapt all the teaching resources on this page. I appreciate feedback on what to keep/toss/expand/scaffold.