Biology Lesson Plans 2009-10 (2nd Semester)
This class is a perfect 10!!
Welcome to Mr. DiGiovannis calendar an outline of what we do in class and list of homework. The calendar is updated weekly or for each unit. Although it may not be exact, it is a pretty reliable representation of what will happen in class.
Date
T 1/05/10 T: Students will be able to explain Natural Selection and use it to
explain/solve a dilemma Bebbledwark World wkbk p. 1 (For Mr. D
Gilligans Island (in songs, phun, TV tunes, catchy)
Do activity
Textbooks
HW: look over policy sheet and try to answer all lab questions. Use your text to find out what natural selection is and its description. Conclusion = last question = 5 pts.
W 1/06/10 T: Describe the nature of science. What is evolution?
Discuss policies and fill out info cards
1. Last name, First name
- Parents names
- Phone numbers for parents
- Book number and condition
- How can I best teach you?
- What would you like to learn/do this year?
- Other information I should know interests, what you want to do .
Pre-test for evolution
Science is ..
Review natural selection
HW: Read and outline/take notes 16.1 16.5 (obj 1- 3) for Thursday 16.6 16.9 by Friday (Obj 4)
Also include scientists contributions Lyell, Lamarck, Malthus & Wallace to Darwin in notes.
When reading always do Vocabulary first.
Try the SQ3R method.
Write down notes to answer the objectives and what is important in the section.
Use index cards for vocabulary and other important concepts IF IT HELPS.
See the student developed rubric for good notes.
Do the Guided Reading as a REVIEW.
R 1/07 T: Compare and contrast human and gorilla skulls.
You are a paleontologist at the Field Museum of Chicago. How would
you classify and display the fossil skulls brought to you?
Use the characteristics from above to Classify fossil skulls.
See p. 11 in workbook
Feature Ape Human
Foramen
Class will share. Use the same features to determine how to classify 2 fossil skulls (per lab group).
Feature Fossil # Fossil #
foramen
Write how you would classify them and why (to be shared with the class).
HW: See 19.8 for human evolution. Skull lab due Monday
Work ahead: Read Ch 17 & Evidence for evolution lab (p. 9).
F 1/08 T: Review good note taking skills
Describe the influence of scientists on Darwin
Make a cladogram map for fossil skulls
Review Skull Lab. (slide show of skulls if time)
Introduce Cladistics (Evolution of the elephant) p.363-365 in text
How would you classify the 4 skulls you observed and why?
Include the idea of evolution and descent with modification. Include how you would display the fossils in your museum. AND EITHER:
1. Draw a cladogram (pp. 363- 365) to show the relationships of the 4 fossils, humans & Apes with a brief description OR
2. Describe the relative ages of the fossils and how you think they may be related
HW: See 19.8 for human evolution & Finish lab
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M 1/11 T: Analyze evidence for evolution
Video Evidence for Evolution (CH 16 - Obj 4) Guide p. 5
Review cladograms p. 363-365
HW: Skim/read Ch 17 Check out Hardy-Weinberg (p. 340-41 &
in wkbk p. 17+)
T 1/12 Distinguish between micro and macroevolution
Review evidences for evolution (ppt).
Evidence for evolution wkst (p. 8)
Evidence for evolution lab (p. 9)
HW: Ch 17 Obj 4
Quiz over Evidence for Evolution & Skull Lab Wed (p. 9 in wkbk)
W 1/13 Induce mutations to bacteria with UV light
Know conditions of Hardy-Weinberg law And 5 Agents of Microevolution
Introduce Hardy-Weinberg
Quiz
Set up Induced mutation lab (p. 21)
Work on Hardy-Weinberg pp 17 - 20
HW: Work on Hardy-Weinberg
(Ch 17)
R 1/14 T: Determine gene frequencies of a population under a selective pressure.
T: Identify the three modes of selection & give examples of each.
Breeding bunnies lab ( p. 13+) Ch 17 - Obj 2 THIS LAB IS EC
(Write hypothesis below data table. Predict what will happen to the gene
frequencies and state WHY you think so. )
Relate modes of natural selection (p 337) to Bebbledwark lab
Understanding Natural Selection wkst & Review pp 7 8
Review Hardy- Weinberg
HW: Work on Hardy- Weinberg problems + lab prep; readings ch 17
F 1/15 HALF DAY INSTITUTE
T: Determine percent of mutations in bacteria
Collect Lab Data.
See web sites for gene frequency changes on line.
HW: Work on simulation/lab sheets
Ch 17 & Hardy- Weinberg take home quiz
Read 18.1 18.3 Work ahead: Read 19.1 19.3 (Skim 19.4 19.7)
Current Event Article due
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M 1/18 Martin Luther King Day No School
T 1/19 T: Hypothesize and run simulations to determine gene frequency changes in
population.
Open Note quiz Hardy- Weinberg
Discuss Guppie lab pp 25- 26. (Share results of simulations) and 27 - 28
HW: Work on readings,
Read 19.1 -19.3 Skim 19.4 19.7 Finish simulation activity sheet
Prepare for test Monday especially review vocabulary and class activities.
Due Thurs EITHER Goggle lab OR Guppy Lab discuss evolutionary fitness in the conclusion. (20 pts) for Guppy lab graph or CLEARLY show and describe data.
W 1/20 T: Describe and explain the 5 agents of microevolution
Discuss goggle lab & Guppies
Lecture/Discuss speciation (objectives ch 18: 1 -3 )
Begin Fitness worksheet hemoglobin & malaria
HW: Review notes PLEASE READ assignments when they are assigned!!
Continue worksheet. Finish lab report.
R 1/21 T: Describe how a new species forms
Group quiz review the reproductive isolation means
Discuss chapter 18 species & how old fossils are. Start timeline.
HW: Finish Life Timeline pp 23-24 worksheet & questions
F 1/22 T: Review the History of Life
Discuss origin of life ideas
age of earth, tree of life, and alternative theories punctuated equilibrium.
Especially consider why the first life may have had RNA instead of DNA.
What were the probable conditions of the primitive earth and the atmosphere?
(Philosophies of evolution revisited)
Extra credit articles? Check out below, media lab or Survival of the Sexiest.
Reasons to Believe: http://www.reasons.org/index.shtml
Evolution (ENSI): http://www.indiana.edu/~ensiweb/
Journal: Write what you have most questions about in the evolution unit (for you to study and/or philosophically for me to answer)
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M 1/25 T: Review evolution and any questions
T: Explain what scientists think is the conditions of the early atmosphere, ho life
formed and why RNA was probably the first molecule of life
Videos
Does washing hands kill bacteria?
Introduce Bud Project
HW: Study for Evolution Test
HW: Read Bud Observation (Read ahead finish ch 18)
T 1/26 T: Demonstrate knowledge of Evolution on todays test
HW: Read 18.4 & 20.3 20.6
W 1/27 T: Reflect on test taking procedures and how to improve
Use a dichotomous key.
Journal: Write how successful was your preparation for the test?
Is there a pattern? Comment when did I do the
readings? How did I prepare? What can I do better to prepare for next
time?
Go over test
Review classification (18.4)
How to use a dichotomous key. Use the key to identify geometric shapes.
HW: Read 18.4 & 20.3 20.6 & Bacterial Inhibition Lab
Bud Observation Lab & Salamander Key p. 29
R 1/28 T: Identify the eight classification levels in the correct order from smallest
to largest.
Describe the basis for the three domain classification scheme
(ch 18 Obj 6 & 7)
T: Determine which bacteriocides work best & if different bacteria react
differently to the same bacteriocide.
Set up bacterial inhibition lab
Intro: Show jackelope picture (explain binomial nomenclature & common names) & classification table
In Wkbk Classification keying bacteria pp 31 - 32
Bacteria video
Make yogurt
HW: CH 20 Readings
F 1/29 T: Describe how bacteria are present in every imaginable place and list
the characteristics of different kinds of bacteria.
Disease presentation sign up (p. 47) & research
Bacteria video
Eat yogurt
Check - Bacterial Inhibition Lab (CH 20 0bj 4)
HW: CH 20: 1 - 2 Readings
Bud Observation
Current Event Due Tuesday
Sam Rhine Field Trip Form??
Lab due Monday
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M 2/01 T: Review bacteria and how they are classified.
How do we know what we do about disease causes?
Have you turned in your Sam Rhine form?
Introduce viruses
Review Kochs Postulates
Virus video if time Ch 20 obj 2 & 3)
HW: Work on Disease poster (Ch 20 obj 7) due Thurs.
Article or Lab?
Wed TURN IN 2 QUESTIONS ABOUT YOUR
POSTER FOR A SCAVENGER HUNT.
T 2/02 T: Describe a virus and its life cycle
T: Review viruses and their uses and history
Compare and contrast bacteria and viruses
HW: Work on Disease poster
W 2/03 T: Invstigate various diseases, their transmission, & treatments Poster
scavenger hunt
TURN IN SAM RHINE FIELD TRIP FORM
Disease poster time
Set up Mushroom spore lab (p. 81)
HW: Read CH 21 (21.1 21.5) Study
R 2/04 T: Identify and draw mushroom spores under the microscope
T: Describe various diseases, their transmission, & treatments Poster
scavenger hunt
Observe mushroom spores
HW: Lab questions due Monday p. 45 46 Fungi = chapter 21
HW: Prepare for Protists. Color wkbk pp 33 40 due Tues.
F 2/05 T: Describe fungal characteristics, how they are classified and their effects on
humans (CH 21: Obj 1, 2, & 3)
T: Describe characteristics of Protist Kingdom (HW)
Discuss protists & finish Fungus
HW: work on coloring book Protists 20.7 20.11
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M 2/08 T: Know how protists are classified, effect on humans and be able to
identify them.
Review causes of disease
Fungus worksheet?
Sign up for Animal Jigsaw p. 57
Introduce animal project & internet research
HW: Work on animal presentation turn in to Mr. D
before Friday noon (email, g drive, share point)
T 2/09 T: Describe major characteristics of animals tissues, symmetry, body
cavity, and proto vs. deuterostome
p. 55 animal development and time for research
HW: Work on protist lab wkbk P.41+
Work on Animal presentation
W 2/10 T: Research the major groupings of animals, characteristics, examples, and
effects on humans.
NO PROTISTS YET.
Research all powerpoints on line, fungus worksheet, development worksheet &
Animal presentations.
Bring in Sam Rhine Form
R 2/11 T: Identify protists, describe how theyre classified and effects on humans
T: Be able to identify various protists by picture and how to classify them.
H W: Finish protist lab: Conclusion Identify which phyla the organisms belong to and why. Study for lab practical quiz both Wednesday.
F 2/12 CONTINUE WITH PROTIST LAB
HW: Work on protist drawings
M - Presidents Day No School
T 2/16 T: Describe major characteristics of animals tissues, symmetry, body
cavity, and proto vs. deuterostome
Finish up protist lab.
Begin Animal Safari Presentation in class
Notes on Animal Safari project p. 59 (All CH 22 Objectives)
HW: Work on lab report and study for practical quiz
W 2/17 T: Be able to identify various protists by picture and how to classify them.
Finish Animal Safari Presentation in class & observe preserved specimen
of animals.
Quiz on Protists
Hw: Prep for district test next Tuesday. Read/study animals
R 2/18 Be able to identify animal grouping of preserved specimen (in bottles)
In notebooks write examples and clues for yourself to be able to identify the phyla
of the preserved specimen.
HW: Study animals. Bring in a twig from tree for twig observation activity.
F 2/19 Learn the parts of a twig and identify the tree using a Winter Tree Finder.
Finish animal presentation, observe animal specimen & twigs
HW: Study for district test (animal specimen Monday, multiple
choice Tuesday) Revisit the Hardy-Weinberg worksheets and on
line web site.
Read: Reprogramming cells write 2 questions and answers to cover main points of the article and 1 or 2 questions youd like to know more about.
If you are NOT going on the field trip read chapter 29 and do guided reading (on SP) or answer Brief review questions p. 649 DUE THURSDAY (EC for Rhine)
EC articles (on SP in Sam Rhine folder)
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M 2/22/10 Identify my tree, when it will sprout, uses, and interesting facts about it.
Animal identification of preserved specimen.
Prepare for the Sam Rhine talk
HW: Twig Observation and Tree Investigation worksheets for
Thursday
Check out Bud- Tree- Flower Scans for Dirr copies.
T 2/23 Know the major levels of classification of all major life forms we covered,
how organisms are classified, examples of each and their effects on
humans.
MR. D IS AT A CONFERENCE.
Work on specimen test, twig and tree worksheets & read article to prep
for Sam Rhine talk.
Sam Rhine field trip tomorrow. Bring a snack and brown bag lunch. You will miss per 1 7.
W 2/24 Sam Rhine
R 2/25 Discuss Sam Rhine talk and articles
F 2/26 No School Institute Day
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M 3/1/10 Demonstrate knowledge of the major levels of classification of all major life forms we covered, how organisms are classified, examples of each and their effects on humans.
HW: Questions & Prep for Bio in the News discussion
Begin reading Ch 27 Immunology
Redo bud, tree & twig observation in different color ink.
T 3/2 T: Discuss current issues in Biology
Review test
Bud terms
HW: See Monday + 1 page summary
W 3/3 T: explain how the immune system responds to an infection and allergens
Video Guide & Journal Reflection
HW: Finish reading CH 27
R 3/4 The only day of the year thats a command ..
T: Describe the nonspecific and specific immune defenses (Obj 1 - 3).
T: Describe cell mediated and antibody mediated immunity
Discuss different types of immunity
HW: Work on Immune System Wkst
Think about what youd like to do for the transplant project (p.65).
F 3/5 T: Describe the role the immune system plays in autoimmune disorders,
allergies and organ transplantation.
Review HIV
Worksheets on immunology - Quiz/Test Tuesday
HW: Read 25.9
M 3/8 Describe a muscle
contraction at the molecular level.
Introduce bones and skeleton lab
Muscle contraction video
Muscle contraction on line
Muscle fatigue mini-lab (p. 73) turn in at end of period
HW: Work on Vocab & Guided Reading for CH 25
Skim 25.1 25.6 Read 25.7 25.9
T 3/9 T: Describe a general overview of skeletal, muscular & integumentary
Systems
Introduce systems go over wkbk review bones p. 28
Immunology Quiz/Test
HW: Read outline 26.1 26.6 for
Think of searches for transplant project
Skim 26.7 26.12 & Lab Prep (p. 69)
Readings Right brain left brain pp 75-76 (section 3 needs a
Partner- dont look at it before someone else tests you.)
Work ahead p77-78 in workbook
W 3/10 LATE ARRIVAL DAY
Work Day for Transplant Project
Design a replacement organ. What would an artificial organ have to do for one to survive? Has there been any success with making a replacement organ to date? Describe P. 65
Journal: Write what your task is for the project and what was
accomplished today.
HW: Work on transplant project (read sections in our text for your
system).
EC: Do Media Lab 1 & 2 OR 3 p 606-7
R 3/11 & F 3/12 PARENT TEACHER CONFERENCES
Come join your parents in conferences.
M 3/15 T: Determine the sex, race, and height of a skeleton (and if it walked with
a limp) Whose Skeleton is in Your Closet? (p. 69 + )
Turn in 1 summary sheet for each skeleton
HW: Quiz on muscles and bones tomorrow
T 3/16 T: Identify parts of a neuron
Explain how nervous system communication works in the body.(obj 5)
Communication within an axon
QUIZ Ch 25 Bone identification +
Right/left brain score analysis
Discuss nervous system
Begin nerve discussion parts of a neuron. Nerve worksheets
Review nerves and nerve impulses (laser disk videos)
In journal write: From ch 26 what type learner am I? (right or left
brain Do I agree with that?
HW: Work on nerve worksheets (p.77, 78 & 84)
Worksheet synapses and cocaine (p.83 Thursday)
W 3/17 T: Explain movement of an impulse down the axon
Communication between cells
Continue nerve study/worksheets
Control for reaction rate p.81
HW: Hormone table pp 85 86 (see p. 585 in text) Only do what you
can using text
Watch teachers school the students.
R 3/18 T: Explain different parts of the brain and what do they control
T: Review the nervous system
T: Explain how drugs affect synapses
Observe sheep brains pp 79 80
View videos on CD From Neurons & Brain Chemistry How
neurotransmitters work & How does cocaine alter neurotransmitters
from Drugs change the way
HW: Work on notes ch 26 prep for quiz Mon and lab Fri p.81
Right-Left Brain Analysis
F 3/19 T: Describe how the endocrine system is controlled feedback loops
Lab Rates of Reaction
Introduce endocrine system
HW: Work on lab report Study for quiz & Bud observation review
hormones & pp656-658
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M 3/22 T: Learn the parts of the heart
Get class data for caffeine lab
Open note quiz nerves & endocrine
HW: Prep heart rate lab begin CH 28 reading?
T 3/23 T: List and describe the components of the cardiovascular system
Describe blood pressure and what it means
Blood Pressure Wednesday Take blood pressure using a
Sphygmomanometer
Discuss heart rate results (put results on board)
Take blood pressure (p.89) and record in journal.
If time laser disk videos on heart
HW: CHECK BUD by end of week (2 wks since last)
Do heart/lung worksheet p. 40
Read Ch 28 beginning (obj 1 13)
W 3/24 T: How is the heart beat initiated? Know parts of the heart.
Review functions of circulatory and respiratory systems
Laser disk videos blood +
Homework quiz
R 3/25 T: How is the heart rate affected by outside activity?
Heart Rate Lab p.87 Turn in lab at end of period.
In journal write: Reflect on your heart rate, recovery time and blood
pressure. What do these say about your current health?
HW: Enjoy Break!! Check on your bud if you have a magnolia or other early bloomer
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M 4/5 T: Describe how blood can return to heart from the foot (Obj 5, 10 &13)
T: How is heart rate affected by exercise?
Lab set up & hypothesis Which color light is best for plant growth?
Discuss target and how it relates to heart rate and homeostasis
Laser disk videos blood +
In journal write: Reflect on your heart rate, recovery time and blood pressure. What do these say about your current health?
Work on websites for heart & lungs if time diseases & effects of exercise.
http://www.cosi.org/files/Flash/openHeart/prevention.swf
See hand-out on sharepoint handout folder websites for heart
HW: pp 95 98 in wkbk. Work on CH 28 reading (finish by next Monday)
Bud Observation if not done this weekend
T 4/6 T: Observe and describe the different types of blood vessels (Obj 5)
Gold Fish Respiration
HW: p 93 & 94
Work on lab (Due Thurs) answer Qs pp 96 &98?
HW: Read CH 28 (obj 14 -17)
W 4/7 T: Describe what happens in respiration during a breath
Collect class data if needed
Homeostasis of breathing Types of respiration
HW: Goldfish lab due Thursday
PRELAB Lipase Lab pp 103 -106
R 4/8 T: Explain the best conditions for fat digestion and why
Lipase Lab Fat Digestion p 103 - 106
1. Wear goggles
2. 1 ml = 1 draw on a pipette
3. clean test tubes
During lab do questions OR LOOK AT PP 101-102
Work on digestion table
1 lab turned in per table due at end of period ( 15 pts randomly picked)
If you finish early, try: Piggy Back Heart Transplant worksheet p. 91
Short conclusion best conditions for fat digestion are because ... evidence
is .. any uncertainty??
HW: Read Finish Ch 28 (obj 25 29)
Digestion ID sheet p.101 & 102
F 4/9 T: Determine vital capacity of lungs and other quantitative measures.
Lung Capacity Lab pp 99-100 in wkbk (finish for HW)
Observe plants in color boxes
HW: Check buds & readings (obj 19 -22+)
Enzymes and what they do table??
Prep for Ch 28 quiz (Tuesday)
M 4/12 T: Identify the structures of the digestive system and what they do
Lab set up and hypothesis: Which way do roots grow?
Discuss Digestive system (videos?)
Find the heart and lung disease notes/wkst from Sharepoint
HW: Prepare for Project Work Day Wednesday
Quiz Digestion ID, circulation & respiration
What happens as food passes through the digestive system? (enzyme &
organ function)
T 4/13 T: What enzymes are produced by the pancreas & small intestine?
What do they do?
homeostasis
Introduce kidney
HW: Bud Observations (check often),
Kidney & Homeostasis lab (Part A)
W 4/14 LATE ARRIVAL DAY How will you present to the audience?
Work Day for Transplant Project
Check out NetTrakker and Gale Virtual Reference Library
HW: See Tuesday
R 4/15 T: Describe the four functions of the kidneys.
Go over Urinary system worksheet p. 107-108
The kidney and homeostasis lab. Part B lab due end of period.
Videos
(p. 107 & 108)
F 4/16 T: Provide the structures of the urinary system, locate structures involved,
describe role of ADH and effect of different drinks on urine output.
T: Prepare for pig dissection. Know how to differentiate the sex of the pig
and the gestational age.
Pass out pigs
Today Part A only & work on workbook. You may do the eye (p. 16 in packet
or review your test.
HW: Check your Bud, plan for dissection - pig coloring p 118 122
Due Tuesday (20 pts)
Journal: Please write your reaction to the pig dissection. This is your pass into class on Monday
M 4/19 T: Identify the structures in the abdominal cavity and what they do.
Start Fetal Pig Dissection Digestion
HW: Work on study table & bud lab
HW: p.115 table 20 points and Lab 25 points (1 due Thurs, 1 due Fri)
.
T 4/20 T: Identify the structures of the thoracic cavity and what they do how is
fetal circulatory system different than the adult?
Fetal pig dissection Circulation & respiration
HW: Study Work on table. Study for paper quiz on pig
W 4/21 T: Identify the male and female reproductive organs and their functions.
Fetal pig dissection Reproduction/urination
HW: Finish Pig table due Friday
R 4/22 WORK DAY for project or Fetal Pig review
You must include a one page summary/resource sheet for project
ESPECIALLY if its not on Power Point
Due at end of hour: summary & group evaluation rubric
HW: Pig study table & lab
F 4/23 Pig Practical Test
HW: Read CH 23 by Friday
Work on Bud Conclusion
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M 4/26 Transplant project presentations
T 4/27 Transplant project presentations
Journal: Write about your group presentation. Any comments about the group I should know about? (Did everyone do their fair share and deserve the same grade?) Which wing should be built in the hospital?
W 4/28 Prairie State Tests No school Work in Prairie after tests
EC Prairie workday 1:30 3:30 at gravel parking lot
R 4/29 PRAIRIE STATE TESTS
EC Prairie workday 1:30 3:30 at Pioneer Park
F 4/30 Transplant project presentations
Grade ch 23 guided reading.
After presentations, well discuss plants and workbook 129 136
Bud Conclusions Due 1 week after phase 4 completion
M 5/3/10 District Test & Mr. Ds Anatomy Test
T 5/4 T: Review the Anatomy of a plant
Plant worksheets pp 133-139
HW: Prepare for plant lab (preview plant lab pp 123-127)
begin ch 24.
W 5/5 T: Describe the major characteristics of Angiosperm plants. (obj 1-4)
Describe the structural characteristics and functions of roots, stems, leaves
and flowers
HW: p 133 -139 and ch 24 for Friday
Bring in fruit to eat or a smoothie
R 5/6 T: Observe and describe the different parts of a plant to learn structure
and function.
T: Describe plant reproduction and seed formation
Work on plant work lab pp 123-127
HW: Work on lab and ch 24 reading (guided reading).
Finish plant lab (include flower ID) p 129-130 due Monday
Bud Conclusions Due 1 week after phase 4 completion
F 5/7 T: Review lab know plant structures and function (obj 7 & 8 Ch 24).
HALF DAY INSTITUTE
Make sure that your microscope drawings are in correct format.
Make sure that you have labeled drawings with all the bold words.
pp. 91 in wkbk & p. 109 in wkbk
HW: Plant Lab due Monday
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M 5/10 What are differences between monocots and dicots?
Describe tropisms photo- gravi- thigmo- (obj 7)
Introduce plant tropisms (ch 17 25668 & 18 side 3)
HW: Finish & Review CH 24 readings
T 5/11 T: Describe major plant hormones and their effects on plant functioning
and communication. (obj 5) Relate to tropisms.
T: Distinguish between primary and secondary growth
W 5/12 T: Explain how water and nutrients especially carbon, oxygen, water and
nitrogen - are recycled between the biotic and abiotic parts of the
ecosystem.
Discuss different cycles in ecosystem
HW: Study for plant quiz
Skim CH 32 (cycles)
R 5/13 T: Show understanding of plant unit
Quiz over plants After Quiz:
T: Describe if a box of Animal Cracker cookies can be used to teach a
Biological Principle
Animal Cracker Lab p. 141
Turn lab in at end of period
HW: Read and STUDY ch 32 & Energy hand-out
Bud labs due Friday
F 5/14 T: Explain food chains and food webs (OBJ 1, 2, 4 & 5 Ch 32)
Know: The Laws of thermodynamics and their implications.
How Gross primary production and net primary production are involved
with the capture of energy by plants (pp 721 722)
Discuss energy and matter movement in a community finish energy discussion
HW: Read and STUDY