Welcome to
AP Computer Science Principles
Great
job on your Unit 1 Chapter 1 Assessment!
This week we are going to be working on the following:
Unit
1: The Internet – Chapter 2
Unit
6: Explore Performance Task Presentations
To Think; To Develop Problem-Solving Skills; To Discover; and To
Create;
Learning
to Compute and Computing to Learn
Classroom
Protocol:
This is where you will come every day to find out what we are
going to do in class for that day. Every day you are to come to your Quia class
web page upon arriving to class, go to your class web page, and follow the
directions for today.
Homework
Policy:
All assignments will be due on the deadline date given. It is the
responsibility for all students to complete their assignments on time. Any
assignments received late will not be accepted and a grade will not be given for
that assignment.
Accessing
your Class Weekly Agenda:
Each
week’s agenda and assignments will be updated and posted on your Quia class
web page on a weekly basis. Previous
weeks Assignments/Agendas will be provided with a link at the end of the current
week’s Class Web Page in case you need to revisit due to an absence, or
you’re required to make up, or catch up on your course assignments.
Homework Assignment: Daily homework assignments may be found at the end of each
day’s agenda. Daily Journal Entries as seen in Daily Ticket to Leave are to be
entered as part of your daily homework. All students will receive a homework
grade on a weekly basis, and your journal will receive a project grade each
mid-term and final semester.
IMPORTANT DATES:
Explore Performance Task: 8
hours
To
Be Completed by December 22, 2017
This
Week’s Agenda:
Practice
Explore Performance Task Presentations
UNIT 1: The
Internet:
This unit begins exploring the technical challenges and questions that arise
from the need to represent digital information in computers and transfer it
between people and computational devices.
Topics
include: the digital representation of information - numbers, text, images, and
communication protocols.
In
the second half of the unit, students solve problems similar ones that had to be
solved to build the real Internet. Students design their own versions of
protocols, each one layered on the previous one, in a process that mimics the
layered sets of protocols on the real Internet. Topics include: the digital
representation of numbers and text, Internet Protocol, DNS, and TCP/IP.
Chapter 2: Inventing the Internet
·
Who and what is “in charge” of the
Internet and how it functions?
·
How is information transmitted from one
computer to the other when they are not directly connected?
·
How can the Internet keep growing? How
does that work?
Enduring Understandings
·
2.1 A variety of abstractions built upon
binary sequences can be used to represent all digital data.
·
6.1 The Internet is a network of
autonomous systems.
·
6.2 Characteristics of the Internet
influence the systems built on it.
·
7.3 Computing has a global affect -- both
beneficial and harmful -- on people and society.
UNIT 6: AP Performance Tasks
·
This unit contains lessons to help students with
preparation and execution of the AP® Performance Tasks: Create and Explore
·
The lessons in this unit are meant to be taken
piecemeal rather than as a typical unit sequence. Instead of a sequence of
connected lessons, these represent a more modular breakdown of the things you
need to do to:
1) Understand the AP Performance Tasks
2) Make a plan for completing the tasks in the
time allotted and
3) Actually doing the tasks and submitting
Week 4:
Monday Day A - 9-25-17 – Friday Day E – 9-29-2017
Period 6
Objective:
1)
Understand
the explore performance task rubric
2)
Communicate with classmates about computing innovations in their
lives.
3)
Describe positive and negative effects of computing innovations.
Activator:
Open
up your Engineering Journal and review what you entered last class. Review the
Standards, Objectives, above, for today’s lesson. Click on https://studio.code.org/
and log in. Locate the Unit 6: The AP CSP Exam and Performance Task ‘View
course’. Make sure your practice Explore Performance Task files have been
submitted on the Google Classroom Assignment.
Direct
Instruction and Guided Practice:
Key
Point: We can only succeed through class participation and collaboration.
1.
Students will present their Explore Performance Task and we will
discuss as a class (collaboration) to determine if requirements of the EPT
Rubric have been satisfied, and how we can improve in moving forward.
2.
Review College Board Provided Task Samples
3.
Look at last year’s AP student’s submitted tasks.
IMPORTANT:
When choosing a computing innovation for your Explore Performance Task
make sure you always
refer to the Explore Performance Task Rubric!
Online Explore Performance Task Resources:
AP CSP Course and
Exam Description
Explore
PT Prep: Reviewing the Task
Explore
Performance Task Rubric
Assessment
for/of learning: Student’s are to be assessed on their Explore Performance Tasks
presentations.
Summarizer: Mr. PC will review each day what each student accomplished and the focus of tomorrow.
Ticket
to Leave:
In
order to prepare you for your two AP CSP college-board performance tasks we need
to get use to reflecting on our daily work and experiences. This is a skill that
will prove to be useful when you go on to college, enter the workforce, and even
in every aspect of your everyday life. Every
day at the end of class you should save your work, open up your journal, put
down today’s date, and provide the following information.
1. Provide at least on new thing that you learned today – Refer to today’s Objectives
2. What did you accomplish today?
3. Indicate any problems or obstacles you experienced
4. How did you solve the problems or obstacles that you experienced?
Feel
free to provide screen shots of your daily work in order to illustrate your
day’s activities. Windows provides a Snipping
Tool within its provided Accessories that may be used for this purpose.
Homework:
1)
Complete
your ticket to leave journal entry.
2)
Research
and choose 3 computing innovations and 3 new computing tools for building
computing artifacts that you can show to the class. You will need to indicate
why the computing innovations are good choices for the Explore Task (how they
can meet the requirements of the rubric, and you will need to demonstrate the
use of the new tools.
HINT:
Use the resources provided at the end of this class web page or research and use
your own.
Period 7
Objective:
1)
Understand
the explore performance task rubric
2)
Communicate with classmates about computing innovations in their
lives.
3)
Describe positive and negative effects of computing innovations.
Activator:
Open
up your Engineering Journal and review what you entered last class. Review the
Standards, Objectives, above, for today’s lesson. Click on https://studio.code.org/
and log in. Locate the Unit 6: The AP CSP Exam and Performance Task ‘View
course’. Make sure your practice Explore Performance Task files have been
submitted on the Google Classroom Assignment.
Direct
Instruction and Guided Practice:
Key
Point: We can only succeed through class participation and collaboration.
1.
Students will present their Explore Performance Task and we will
discuss as a class (collaboration) to determine if requirements of the EPT
Rubric have been satisfied, and how we can improve in moving forward.
2.
Review College Board Provided Task Samples
3.
Look at last year’s AP student’s submitted tasks.
IMPORTANT:
When choosing a computing innovation for your Explore Performance Task
make sure you always
refer to the Explore Performance Task Rubric!
Online Explore Performance Task Resources:
AP CSP Course and
Exam Description
Explore
PT Prep: Reviewing the Task
Explore
Performance Task Rubric
Assessment
for/of learning: Student’s are to be assessed on their Explore Performance Tasks
presentations.
Summarizer: Mr. PC will review each day what each student accomplished and the focus of tomorrow.
Ticket
to Leave:
In
order to prepare you for your two AP CSP college-board performance tasks we need
to get use to reflecting on our daily work and experiences. This is a skill that
will prove to be useful when you go on to college, enter the workforce, and even
in every aspect of your everyday life. Every
day at the end of class you should save your work, open up your journal, put
down today’s date, and provide the following information.
1. Provide at least on new thing that you learned today – Refer to today’s Objectives
2. What did you accomplish today?
3. Indicate any problems or obstacles you experienced
4. How did you solve the problems or obstacles that you experienced?
Feel
free to provide screen shots of your daily work in order to illustrate your
day’s activities. Windows provides a Snipping
Tool within its provided Accessories that may be used for this purpose.
Homework:
1)
Complete
your ticket to leave journal entry.
2)
Research
and choose 3 computing innovations and 3 new computing tools for building
computing artifacts that you can show to the class. You will need to indicate
why the computing innovations are good choices for the Explore Task (how they
can meet the requirements of the rubric, and you will need to demonstrate the
use of the new tools.
HINT:
Use the resources provided at the end of this class web page or research and use
your own.
Period 6
CSTA K-12 Computer Science Standards
CD - Computers & Communication Devices
CD.L2:6 - Describe the major components and functions of
computer systems and networks.
CD.L3A:9 - Describe how the Internet facilitates global
communication.
CL - Collaboration
CL.L2:3 - Collaborate with peers, experts and others using
collaborative practices such as pair programming, working in project teams and
participating in-group active learning activities.
Computer Science Principles
6.1 - The Internet is a network of autonomous systems.
6.1.1 - Explain the abstractions in the Internet and how the
Internet functions. [P3]
6.1.1C - Devices and networks that make up the Internet are
connected and communicate using addresses and protocols.
6.1.1D - The Internet and the systems built on it facilitate
collaboration.
6.1.1F - The Internet is built on evolving standards,
including those for addresses and names.
6.1.1H - The number of devices that could use an IP address
has grown so fast that a new protocol (IPv6) has been established to handle
routing of many more devices.
6.2 - Characteristics of the Internet influence the systems
built on it.
6.2.1 - Explain characteristics of the Internet and the
systems built on it. [P5]
6.2.1C - IP addresses are hierarchical.
6.2.2 - Explain how the characteristics of the Internet
influence the systems built on it. [P4]
6.2.2D - Interfaces and protocols enable widespread use of
the Internet.
6.3 - Cybersecurity is an important concern for the Internet
and the systems built on it.
6.3.1 -
Identify existing cybersecurity concerns and potential options to address these
issues with the Internet and the systems built on it. [P1]
6.3.1A - The trust model of the Internet involves tradeoffs.
Students will be able to:
Activator:
Open
up your Engineering Journal and review what you entered last class. Review the
Standards, Objectives, above, for today’s lesson. Click on https://studio.code.org/
and log in. Locate the Unit 1: The Internet tile and click ‘View course’.
Lesson 9
Direct Instruction:
Complete work from Monday and Tuesday then …
Last week you played a game of Broadcast Battleship using the
Internet Simulator and had to come up with a protocol to play the game without
speaking. Following is an example of an encoding scheme that could be used to
satisfy the communication and protocol requirements of playing this game in
silence.
A simple, but clever encoding protocol is to recognize that the
addresses, coordinates, and hit/miss messages can each be encoded with 2 bits
(i.e. a list of 5 numbers in the range 0-3), and that you can make a combined
message protocol that would allow a player to communicate anything needed for
the game.
The scheme shown below uses 10 bits total. The last two bits are
interesting: they indicate whether this is a shot being fired for the given row
and column or whether it’s a hit/miss response to the given row and column.
Since the respondent who says hit or miss must verify the coordinates of the
shot they are responding to, the recipient doesn’t have to remember the last
shot they called.
It
turns out computers on the Internet are addressed in a similar way to phones for
many of the same reasons. The real addresses used on the Internet are called
“Internet Protocol Addresses” or IP Addresses for short.
Rapid
research
Look up the real IP packet structure and it might make
some sense to them. They might find it satisfying and empowering to be able to
understand a more technical article. The Wikipedia article on IPv4 packets shows
how all the bits are laid out:
However, we have not
yet covered a major aspect of packets, and the real need for their existence,
which is that they are used to breakdown very large messages into smaller chunks
to improve reliability of transmission. We cover packets in a future
lesson.
Video: The
Internet: IP Addresses and DNS - Video
·
Go to code.org Unit 1: Lesson9 and make a copy of the IP and DNS Video Worksheet to your
Google Drive
·
Answer the questions on the worksheet and when done submit to the
assignment found on your Google classroom.
·
Complete the assessment found at the end of Lesson 9 on code.org
Assessment
for/of learning: Completion of today’s class assignment.
Summarizer: Mr. PC will review each day what each student accomplished and the focus of tomorrow.
Ticket
to Leave:
In
order to prepare you for your two AP CSP college-board performance tasks we need
to get use to reflecting on our daily work and experiences. This is a skill that
will prove to be useful when you go on to college, enter the workforce, and even
in every aspect of your everyday life. Every
day at the end of class you should save your work, open up your journal, put
down today’s date, and provide the following information.
1. Provide at least on new thing that you learned today – Refer to today’s Objectives
2. What did you accomplish today?
3. Indicate any problems or obstacles you experienced
4. How did you solve the problems or obstacles that you experienced?
Feel
free to provide screen shots of your daily work in order to illustrate your
day’s activities. Windows provides a Snipping
Tool within its provided Accessories that may be used for this purpose.
Homework:
1)
Complete
your ticket to leave journal entry.
2)
Research
and choose 3 computing innovations and 3 new computing tools for building
computing artifacts that you can show to the class. You will need to indicate
why the computing innovations are good choices for the Explore Task (how they
can meet the requirements of the rubric, and you will need to demonstrate the
use of the new tools.
HINT:
Use the resources provided at the end of this class web page or research and use
your own.
Period 7
CSTA K-12 Computer Science Standards
CD - Computers & Communication Devices
CL - Collaboration
Computer Science Principles
3.3 - There are trade offs when representing information as
digital data.
3.3.1 - Analyze how data representation, storage, security,
and transmission of data involve computational manipulation of information. [P4]
3.3.1A - Digital data representations involve trade offs
related to storage, security, and privacy concerns.
3.3.1F - Security and privacy concerns arise with data
containing personal information.
6.1 - The Internet is a network of autonomous systems.
6.1.1 - Explain the abstractions in the Internet and how the
Internet functions. [P3]
6.1.1B - An end to end architecture facilitates connecting
new devices and networks on the Internet.
6.1.1C - Devices and networks that make up the Internet are
connected and communicate using addresses and protocols.
6.1.1E - Connecting new devices to the Internet is enabled
by assignment of an Internet protocol (IP) address.
6.2 - Characteristics of the Internet influence the systems
built on it.
6.2.1 - Explain characteristics of the Internet and the
systems built on it. [P5]
6.2.1A - The Internet and the systems built on it are
hierarchical and redundant.
6.2.1D - Routing on the Internet is fault tolerant and
redundant.
6.2.2 - Explain how the characteristics of the Internet
influence the systems built on it. [P4]
6.2.2B - The redundancy of routing (i.e., more than one way
to route data) between two points on the Internet increases the reliability of
the Internet and helps it scale to more devices and more people.
Students will be able to:
Activator:
Open
up your Engineering Journal and review what you entered last class. Review the
Standards, Objectives, above, for today’s lesson. Click on https://studio.code.org/
and log in. Locate the Unit 1: The Internet tile and click ‘View course’. Go
to Lesson 10
Direct Instruction:
Imagine you were going to send a letter to a friend living in
another state. In your engineering notebook: List the steps you imagine your
letter would have to take through the different parts of the postal system.
Don’t worry if you’re not sure about your answers, just make an educated
guess.
Class
Discussion and model of steps involved on board
When we send messages
through a network we don’t actually want everyone on the network to receive
them. If we include information about who the message is intended for then we
can allow portions of the network to focus on sorting and routing messages, so
that they can continue on their way to their intended target. In the mail
system, mail facilities, post offices, or a mail carrier fills this role.
In a network of
computers, certain computers called “routers” do the same thing, directing
messages towards the target computer based on the IP addresses included in the
message.
Guided Practice:
Today's activity introduces the newest incarnation of the
Internet Simulator
Go
to the Internet Simulator on Code Studio:
Log
into Code Studio and find today’s lesson – Lesson 10.
Choose
a Router:
Add
a router if you need more space. Then join a router with a few of the people
sitting closest to you. Ideally, you’ll have 3-4 classmates with you on your
router.
Send
a quick test message:
Send
a simple "hello" to a friend who is connected to the same router.
Activity
Goal
Open up the Activity Guide and make a copy to your Google Drive
for editing: Routers and Redundancy - Activity
Guide.
Transitional
Remarks:
The
Router Logs
Find
a Classmate on a Different Router:
The Internet Simulator can route messages between routers,
allowing the entire class to communicate. Ask students to find two classmates on
a different router and ask for their IP addresses. (They'll need to actually
talk to one another; they currently won't be able to do it on the Internet
Simulator.)
Have
a Conversation:
Again, students should conduct a short conversation with their
two partners, confirming verbally that the messages are being received.
Reading
Network Traffic:
Once
students have been able to talk with classmates, direct them again towards the
"Log Browser" button. It is possible to read traffic across the entire
network, not merely your router by clicking the “Show all routers” button.
Ask students to open the network traffic and examine the traffic in order to
answer the questions listed there.
Explaining
Redundancy:
Remarks
On the Internet
Simulator we see messages appearing in the Router Logs multiple times (like in
the image to the right). This is done to simulate a message passing through
multiple routers on its way to its destination. A row is created each time it
shows up at a new router.
·
Prompt: If you trace carefully you'll notice that messages
between two people don't always visit the same routers along the way. This is
not a mistake; it’s modeled after the way the actual Internet was designed.
Why might the Internet have been designed to be flexible about how messages get
from one person to another? Why go through the trouble of creating multiple
paths between users?
Answer
the reflection questions at the bottom of this document: Routers
and Redundancy - Activity Guide.
Class
Discussion:
Assessment
for/of learning: Completion of today’s class assignment.
Summarizer: Mr. PC will review each day what each student accomplished and the focus of tomorrow.
Ticket
to Leave:
In
order to prepare you for your two AP CSP college-board performance tasks we need
to get use to reflecting on our daily work and experiences. This is a skill that
will prove to be useful when you go on to college, enter the workforce, and even
in every aspect of your everyday life. Every
day at the end of class you should save your work, open up your journal, put
down today’s date, and provide the following information.
1. Provide at least on new thing that you learned today – Refer to today’s Objectives
2. What did you accomplish today?
3. Indicate any problems or obstacles you experienced
4. How did you solve the problems or obstacles that you experienced?
Feel
free to provide screen shots of your daily work in order to illustrate your
day’s activities. Windows provides a Snipping
Tool within its provided Accessories that may be used for this purpose.
Homework:
1)
Complete
your ticket to leave journal entry.
2)
Research
and choose 3 computing innovations and 3 new computing tools for building
computing artifacts that you can show to the class. You will need to indicate
why the computing innovations are good choices for the Explore Task (how they
can meet the requirements of the rubric, and you will need to demonstrate the
use of the new tools.
HINT:
Use the resources provided at the end of this class web page or research and use
your own.
Period 6 and Period 7
Key
Point: We can only succeed through class participation and collaboration.
You may use today to work on your
homework assignment for this week as seen below. Be ready to present your
computing innovations and demonstrate the computing tools on Monday.
1)
Research
and choose 3 computing innovations and 3 new computing tools for building
computing artifacts that you can show to the class. You will need to indicate
why the computing innovations are good choices for the Explore Task (how they
can meet the requirements of the rubric, and you will need to demonstrate the
use of the new tools.
HINT:
Use the resources provided at the end of this class web page or research and use
your own.
Period 6
Key
Point: We can only succeed through class participation and collaboration.
You may use today to work on your
homework assignment for this week as seen below. Be ready to present your
computing innovations and demonstrate the computing tools on Monday.
1)
Research
and choose 3 computing innovations and 3 new computing tools for building
computing artifacts that you can show to the class. You will need to indicate
why the computing innovations are good choices for the Explore Task (how they
can meet the requirements of the rubric, and you will need to demonstrate the
use of the new tools.
HINT:
Use the resources provided at the end of this class web page or research and use
your own.
Assessment
for/of learning: Completion of today’s class assignment.
Summarizer: Mr. PC will review each day what each student accomplished and the focus of tomorrow.
Ticket
to Leave:
In
order to prepare you for your two AP CSP college-board performance tasks we need
to get use to reflecting on our daily work and experiences. This is a skill that
will prove to be useful when you go on to college, enter the workforce, and even
in every aspect of your everyday life. Every
day at the end of class you should save your work, open up your journal, put
down today’s date, and provide the following information.
1. Provide at least on new thing that you learned today – Refer to today’s Objectives
2. What did you accomplish today?
3. Indicate any problems or obstacles you experienced
4. How did you solve the problems or obstacles that you experienced?
Feel
free to provide screen shots of your daily work in order to illustrate your
day’s activities. Windows provides a Snipping
Tool within its provided Accessories that may be used for this purpose.
Homework:
1)
Complete
your ticket to leave journal entry.
2)
Research
and choose 3 computing innovations and 3 new computing tools for building
computing artifacts that you can show to the class. You will need to indicate
why the computing innovations are good choices for the Explore Task (how they
can meet the requirements of the rubric, and you will need to demonstrate the
use of the new tools.
HINT:
Use the resources provided at the end of this class web page or research and use
your own.
Thanks for a great
week!
Mr. PC
Explore
Performance Task Rubric
More Resources for
finding computing innovations:
http://www.pbslearningmedia.org/
Tools
for building computing artifacts:
http://cooltoolsforschools.wikispaces.com/
To Do: Create Digital
Portfolios for Performance Tasks Submissions. Our goal is to complete our
Explore Performance Task before the end of 2017.
·
Begin
preparing for the May 11th Exam with practice exam questions from AP training
google drive and the career board. Use online student response system for class
review and discussion.
Chapter 1: Representing and Transmitting Information
Big Questions
·
Why do computers use binary to represent
digital information?
·
How does data physically get from one
computer to another?
·
Are the ways data is represented and
transmitted with computers laws of nature or laws of man?
Enduring Understandings
·
2.1 A variety of abstractions built upon
binary sequences can be used to represent all digital data.
·
3.3 There are trade offs when representing
information as digital data.
·
6.2 Characteristics of the Internet
influence the systems built on it.
·
7.2 Computing enables innovation in nearly
every field.