Post on 28-Dec-2015
transcript
WORKSHOP GOALS
Provide Adult-level Content & Hands-On
Experiences
Provide Standards-based Activities to Support
Content
Provide Opportunity for Teachers to Refine Their
Lessons and Schedule Lesson Studies
Incorporate SDAIE/EL Strategies When Possible
Promote Scientific Inquiry
WORKSHOP AGENDA
8:30-10:15 - Content
10:15-10:30 – Break
10:30-12:00 - Evolution
12:00-1:00 - Lunch
1:00-2:15 – Cellular Respiration Activity
2:15-2:45 - Cellular Respiration Content Debrief
2:45-3:00 - Student Pretests/Units Paperwork
3:00-4:00 - Lesson Study Planning
THERE IS A SUPERSTITION THAT IF YOU PUT A PIECE
OF BREAD IN A BABY CRADLE IT WILL KEEP AWAY
_____.
A. GHOSTSB. BUGS
C. DISEASE
BIG IDEA:
Plants and animal cells break down sugar to obtain energy
in a process called CELLULAR RESPIRATION,
which results in the production of CO2.
CELLULAR RESPIRATION
C6H12O6 + O2 CO2 + H2O + ENERGY Carbon Dioxide
OxygenGlucose WaterATP
Adenosine Triphosphate
PICTORIAL INPUT
The Yeast CellVocabulary Words:• Cell Wall• Cell Membrane• Vacuole• Mitochondria
• Daughter Cell• Cellulose• Nucleus• Bub Scar
MANY PRODUCTS…• Alcohol
• Beer & Ales• Rootbeer• Vegemite• Probiotics• Ethanol Fuel
…and baked goods, like BREAD!
FOCUS QUESTION:
Which yeast recipe produces the most CO2
through cellular respiration?
Which recipe is Nonna’s secret recipe?
KIT INVENTORY• “Water”
(Hydrogen Peroxide)• Quick-rise Yeast
Packets• Sugar packets• Empty water
bottles
• Balloons• Blue tape• Graduated
Cylinder
GENERAL PLANIndependent Variable? (What Ingredient are you changing in your recipe?)
Dependent Variable? (What will you measure?)
Controls? (What stays the same to make it fair?)
TIPS
• Add ingredients in order:1.Water2.Sugar3.Yeast
• Quickly and carefully place balloon on bottle• Swishing is ok…do it consistently• Keep sticky side of tape away from balloon
DATA
What data will you need to collect in order to answer
the focus questions?
How can you organize this information?
CLAIMS AND EVIDENCE
Write a claim that answers the focus questions. Support your claim with specific evidence from your data.
Which yeast recipe produces the most CO2
through cellular respiration?
REFLECTION
What is a future experiment you could do with yeast to learn more about cellular
respiration?
BACKGROUND: YEAST AND CELLULAR RESPIRATION
Yeast are tiny single-celled (unicellular) fungi. The organisms in the Kingdom Fungi are not capable of making their own food. Fungi, like any other organism, need food for energy. They rely on sugar found in their environment to provide them with this energy so that they can grow and reproduce. Yeast, like bacteria grow in or on their food source. They produce and release digestive proteins (enzymes) into their environment where the sugar molecules are found. Complex sugar molecules then break down into monosaccharides that can be absorbed by the yeast and used for food (energy). There are many species of yeast, and each has a particular food source. Certain yeast feed on a variety of natural sources of sugar such as fruits, nectar from plants, and molasses from the plant crop called sorghum. Others break down wood and corn stalks. In doing this, a compound called ethanol is produced. This compound can be used in our cars like gasoline. Another species break down sugar from grain into alcohol. Others break down fruits into wine, which is another type of alcohol. Bread recipes rely on yeast to break down sugar in flour.