The Week of 9/16/19

• Tues 9/17:  Take Statistics Quiz/Test.  Resume working on Cell Worksheet (due Thursday 9/19).  Basic Cell Concepts.  Hand out Cell Model Project, due next Wednesday 9/25.
• Thurs 9/19:  Turn in Cell Worksheet.  Go over cell parts.  Cell membranes.  Do DBQ on Davson-Danielli Model on pp 28-30 of the text (see my website for 1.3 text).  Also, you can skip questions 2-4 on the left side of p. 29.  Still do the right side and make a sketch of the graph with time on the x-axis and % mixed on the y-axis with range bars. 

Reading:  You should have finished the Cell Worksheet and Read 1.1 and 1.2.  Read 1.3 on membranes for homework!

What's On the Statistics/Uncertainty Quiz/Test Next Tuesday 9/17?

You should be able to:

• Count sig. figs. and compute and round appropriately
• List the requirements for a good IB graph and give a sketch of what one might look like
• Use TI-84 to calculate standard deviation, t-test, mean, and n (number of stats) without instructions!!!
• Figure out degrees of freedom, find critical value (using chart), and interpret meaning
• State meaning of standard deviation and ranges for 1 and 2 standard deviations (68% and 95%)
• Calculate uncertainty (high-low)/2
• Propagate uncertainty for adding/subtracting and multiplying/dividing
• Calculate number of organisms in a grid using values from several quadrats
• I will have you measure something in the classroom using proper precision and reasonable uncertainty (you will use either a ruler, a graduated cylinder, or a thermometer)

Brine Shrimp Class Data

These are the results from the Brine Shrimp Lab:

Percent Hatched and Alive:

3% Salt             
2.1
0.40
4.7
0.02
6.5
0.45
0.50
3.4

5% Salt
0.26
0.54
1.8
0.49
0.60
0.23
6.2
3.4

The Week of 9/9

• Mon 9/9:  Go over the meaning of t-tests and how to interpret the results.  Demonstrate how to make a histogram.  Work-time on statistics packet and time to make a graph using LoggerPro.  In pairs, each of you should make a graph using one of the data tables on the back of the uncertainty worksheet and show it to Ms. Kenny.  Ms. Kenny will initial the data table that you graphed.  Check over your completed worksheet and turn it in!  Discuss the write up for the Brine Shrimp Lab, due Fri 9/13 through turnitin.com
• Wed 9/11:  Complete the statistics packet and turn it in.  Discuss parts of a lab write-up and work on the Brine Shrimp Lab.  Review concepts for the first test, which will be on Tuesday 9/17.
• Fri 9/13:  Turn in Brine Shrimp Lab through turnitin.com.  More review for the Statistics Test that we will take on Tuesday.  Hand out Introduction to Cells worksheet and start working on it using section 1.1 of the textbook.  

Beginning of the School Year!

• Wed 8/28  All Classes!  Quick intro to class procedures.  Bingo Mingle.
• Thurs 8/29:  Hand out Safety and Academic Honesty Contracts.  Please get them signed by yourself and a parent/guardian by next Thursday 9/5.  Go over Classroom Guidelines (see hand-out on website!).  Measurement/Uncertainty Lab done in groups.  Present the measurement and uncertainty, complete the notes (yes, you should have notes for most if not all measurements!), and turn in.  It is fine to turn it in on Tues 9/3.  Start Counting Significant Figures Worksheet.
• Tues 9/3:  Continue with counting significant figures and add computing with significant figures.  Complete 1-20 on the front of the worksheet and complete the back of the worksheet.  In groups, count brine shrimp cysts using Dissecting Microscopes, fill in the counts on your hand out and calculate the number of cysts on your grid.  Add 3% or 5% saline (I will tell you which) to your cysts and let sit for 48 hours.  Bring a TI-84 calculator on Thursday!
• Thurs 9/5:  Go over Propagating uncertainty and complete 21-25 on the uncertainty worksheet.  Demonstration of how to make a good graph using LoggerPro.  In pairs make LoggerPro graphs of the 2 sets of data on the back of your uncertainty hand-out.  Get your hand-out initialed by the teacher when you complete your graph. When complete, turn it in.  Make sure that you showed your work where necessary.  Count "live" brine shrimp and record in your lab hand out.  Calculate "% hatched and alive" and enter in the class database.  Using TI-84 calculators, complete the 1st page of the statistics packet.  If time, do more!  Discuss brine shrimp lab write up, due next Wednesday 9/11.

Welcome to IB Biology HL 1-2!!

Welcome to the 2019-2020 School Year!  This will be the website for your IB Biology class for the next 2 years.  If you look through old entries you can see what classes before you have done.  This will be a good place to go to get class assignments, class resources, and just to keep yourself informed about the class.  When you miss class, come here first to see what we did in class and to find out if there is anything you can do from home.  After that, if you still have questions, you can e-mail me:  mkenny@pps.net

I look forward to meeting you and spending the next 2 years learning biology!  We will cover the following topics during the first year:

First Semester

Introduction to Course, Statistics, and Measuring

Cells and Membranes (Most of Chapter 1)

Biochemistry: Water and Macromolecules (Most of Chapter 2)

Cell Respiration and Photosynthesis (2.8,2.9,8.2,8.3)

Cell Division:  Mitosis and Meiosis (1.6,3.3,10.1)

Possibly Start Genetics (3.1 and 3.2)

Second Semester
Finish Genetics (3.1,3.2,3.4,10.2)

Replication, Transcription, Translation (2.7,7.1,7.2,7.3)

Enzymes (2.5,8.1)

Biotechnology (3.5 and more)

Plants (Chapter 9)

Ecology (maybe get it started)

During the 2nd year, we will cover:

Ecology (Chapter 4)

Biodiversity (5.3 and 5.4)

Evolution (5.1, 5.2, 1.5 and 10.3)

Digestion (6.1)

Circulation (6.2)

Respiration (6.4)

Immunology (6.3 and 11.1)

Muscles and Movement (11.2)

The Kidney (11.3)

Sexual Reproduction (6.6 and 11.4)

Neurobiology (6.5)

Option A,B,C, or D

In addition, we will do an individual investigation (IA), study an IB option chosen by the class, and prepare for the IB Biology Exam! 

April 2019

We're down to the end!  One more unit and one more month.  Hang in there and learn as much as you can in this last unit, while also going back to review some past units.

• Tues 4/2:  Neurogenesis and Structure and Function of the Brain.  Read A1 and A2.
• Thurs 4/4:  Senses:  olfactory, auditory, and visual.  Read A3.  
• Tues 4/9:  Dissect Cow's Eyes.  Turn in 8 good observations and describe how structure affects functions for 3 eye parts.  Innate vs Learned Behavior.  Read A4.
• Thurs 4/11:  Neuropharmacology.  Read A5.
• Mon 4/15:  Cadaver Field Trip!  Details to come soon.
• Wed 4/17:  Finish Neuropharmacology and have groups study different animal behaviors (Ethology).  Read A6.
• Fri 4/19:  Overview of the Option.  Review strategies for Date-Based Questions.
• Tue 4/23:  Practice Paper 3.
• Thurs 4/25:  Practice Paper 2, Part A
• Mon 4/29:  Practice Paper 2, Part B
• Wed 5/1:  Practice Paper 1