Short Engagement Cycle Structure
Basic Knowledge
Key Idea
Think and Learn
Importance and Time Spent
Teacher gives just enough information to orient students
Whole class
Whole class
Small group
Teacher demo/Q&A to support student thinking
Generative work by students
Didactic
Interactive
Interactive
Engagement Cycles
Paper and Media
This Slide Deck
Worksheets
1 per student
1 per group
5 Big Picture Diagrams
1 per group
Letter Sized
Large Format
Letter Sized
Worksheets
Process Diagrams
Big Picture Diagrams
Physical Materials
Introduction
Cellular Respiration
Cells Need Energy
To live
To grow
To perform vital functions
How do cells get the energy the need?
Introduce Basic Knowledge 1.1
Electromagnetic (EM) Fields
How are the top and bottom showing the same thing?
Basic Knowledge 1.2
Key Idea 1: Electromagnetic Field Demo
Act out a magnet with a field
Balloon
Chalkboard eraser magnets
Say that energy is stored in magnetic fields.
Key Idea: There is a physical thing (field) between the magnets that gets stretched or compressed
Stretch the balloon and say that when you pull the magnets apart you are storing energy in the field. You can tell energy is stored because it snaps back.
Compress the balloon and say when you push repelling magnets together you are also storing energy in fields.
Energy in Attracting EM Fields
Magnets pulled apart
Magnets closer in
N
S
N
S
Which field is storing more energy, left or right?
Key Idea 1.1
Energy in Repelling EM Fields
Magnets further out
N
N
Magnets pushed together
N
N
Which field is storing more energy, left or right?
Key Idea 1.2
Do Think and Learn 1.1
Think and Learn 1.1
Think and Learn 1.2
Why are these guys sweating?
N
Pulling apart
Held far apart
Urgh!
Urgh!
S
N
S
Think and Learn 1.3
N
Pulling apart
Pushing together
Urgh!
Urgh!
Urgh!
Urgh!
Attracting
Repelling
What do these have in common?
S
N
N
Think and Learn 1.4
Attracting
Repelling
What about these? What is common to both?
Crashing in
Flying apart
Boom!
Boom!
Think and Learn 1.5 & 1.6
Do Think and Learn 1.5 and 1.6
2. Energy in Molecules
Cellular Respiration: It’s About Energy in Molecules
Glucose
ATP
NADH
Basic Knowledge 2.1
NAD
-
-
H
Molecules can have different energies
Higher Energy
Lower Energy
Basic Knowledge 2.2
Molecules are Made of Atoms
Orbitals
Nucleus
Electrons
Basic Knowledge 2.3
Do Basic Knowledge 2.4
Basic Knowledge 2.4
Demo: Energy in Orbitals
Key Idea 2
Demo for Key Idea 2 - Atomic Structure
Materials:
Nucleus - Frisbee, paper disk, beach ball
Electron - Whiffle ball or small disk
Field - Surgical tubing or section of theraband.
Demonstrate parts of model
Student volunteer nucleus and one end of tubing
You hold the electron and other end of tubing
Stretch the tubing
Indicate by motions that the electron is orbiting
Show close orbit
Show it stretching very far
Q: Which of these two orbitals does the electron have more energy?
Show that the orbit can be closer in or further out. Demonstrate orbital motion for both.
Summary: The electron is always attracted to the nucleus. The further out it goes, the more energy it has.
Show further orbit
Q: That’s right. How do you know?
Key Ideas (version 1):
(1) The electron goes around the nucleus.
(2) The nucleus attracts the electron
(3) There is a field between them.
(4) The electron can be at different distances.
(5) The greater the distance, the more energy is stored in the field.
Do Think and Learn 2
Think and Learn 2
3. Carbohydrate Energy
Demo: Energy in Carbohydrates
Basic Knowledge 3.1
Carbohydrates
Basic Knowledge 2
Starches and Sugars
Glucose - A Simple Sugar
Basic Knowledge 3.2
Which carbohydrate has more energy?
A
B
Key Idea 3.1
Which carbohydrate has more energy?
A
B
Key Idea 3.2
Which carbohydrate has more energy?
A
B
Key Idea 3.3
Do Think and Learn 3.1
*Complete activity in one group member’s packet*
Think and Learn 3.1
Energy in Marshmallows
Marshmallow- Full of Sugar
Burning Marshmallow
Burned-up marshmallow
Sugar Cane Growing In the Sun
Think and Learn 3.2
4. Phosphate Energy
ATP and ADP
Basic Knowledge 4.1
ATP: Adenosine Triphosphate
ADP: Adenosine Diphosphate
Do Basic Knowledge 4.2
Basic Knowledge 4.2
Going from ATP to ADP
ATP
ADP
Key Idea 4
What does the 3rd phosphate do?
Do Think and Learn 4
*Complete activity in one group member’s packet*
Think and Learn 4
5. Electron Energy - NADH
NADH
Basic Knowledge 5.1
NADH
NAD+
-
-
H+
NAD+
-
-
H+
NAD+
O
O
O
O
Do Basic Knowledge 5.2
Basic Knowledge 5.2
Making NADH from NAD+...
Key Idea 5
NADH
NAD+
What happens to the electrons?
Do Think and Learn 5
*Complete activity in one group member’s packet*
Think and Learn 5
6. Proton Energy
Mitochondrion
Outer Membrane
Inner Membrane
Intermembrane Space
Matrix
Mitochondrion
Two Balloons
Basic Knowledge 6.1
Protons in the Mitochondrion
Outer membrane
Inner membrane
Basic Knowledge 6.2
H+
+
Two ways of showing protons
Do Basic Knowledge 6.3
Basic Knowledge 6.3
Protons Repel through EM Fields
+
+
Which proton pair stores more energy, left or right?
+
+
Key Idea 6
Do Think and Learn 6
*Complete activity in one group member’s packet*
Think and Learn 6
Trace the Flow of Energy
Quick Orientation
Student Modeling
Think and Learn 7
3 Large Format Process Diagrams
The Big Picture
10 energy cards (5 of each)
5 cellular respiration process sheets
Think and Learn 8
5 arrows
The Big Picture
Think and Learn 8