Kids and Computer Science¶
Find a local CS Class: https://code.org/learn/local
Hour of Code¶
Get your community involved in the Hour of Code https://hourofcode.com/us/promote
K12 CS Framework¶
The K–12 Computer Science Framework is a high-level set of guidelines that informs the development of standards, curriculum, course pathways, and professional development.
The framework can be viewed as one PDF, by grade band, by progression, and by concept:
Very many organizations and corporations have endorsed K12 CS Framework with statements of support: ACM, Apple, Amazon, Code.org, CollegeBoard, Google, Microsoft: https://k12cs.org/statements-of-support/
Networks and Internet
Data and Analysis
Algorithms and Programming
Impacts of Computing
Fostering and Inclusive Computing Culture
Collaborating Around Computing
Recognizing and Defining Computational Problems
Developing and Using Abstractions
Creating Computational Artifacts
Testing and Refining Computational Artifacts
Communicating About Computing
Family Media Plan¶
Create an AAP Family Media Plan:
Screen Free Zones
Screen Free Times
Devices will charge overnight
Choose & Diversify Your Media
Balancing Online & Off-line Time
Do not give out personal information online
Do not share private photos online
Review privacy settings with your children
See also: Internet Safety
Screen Time Guidelines¶
“American Academy of Pediatrics Announces New Recommendations for Children’s Media Use” https://www.aap.org/en-us/about-the-aap/aap-press-room/Pages/American-Academy-of-Pediatrics-Announces-New-Recommendations-for-Childrens-Media-Use.aspx
Ages 0-5: “Media and Young Minds” https://pediatrics.aappublications.org/content/early/2016/10/19/peds.2016-2591
The chief factor that facilitates toddlers’ learning from commercial media (starting around 15 months of age) is parents watching with them and reteaching the content.
Ages 2-5: No more than one (1) hour a day.
Ages 5-18: “Media Use in School-Aged Children and Adolescents” https://pediatrics.aappublications.org/content/early/2016/10/19/peds.2016-2592
“Children and Adolescents and Digital Media” https://pediatrics.aappublications.org/content/early/2016/10/19/peds.2016-2593
Software for Learning¶
GCompris is an open source educational software suite written with Qt and Python/C and now Qt and C++/QML available on Linux, Android, Windows, MacOS, and iOS.
GCompris has activities for learning how to use a mouse
Some activities seem to be easier with an actual mouse than a trackpad
GCompris has activities for learning how to use a keyboard
Scratch Jr. is version of Scratch for 5-7 year olds.
Many Code.org exercises (including Dance Party) are Scratch projects.
Create a new Scratch Project with the Get Started tutorial: https://scratch.mit.edu/projects/editor/?tutorial=getStarted
Create a new Scratch Project with the Get Started tutorial: https://scratch.mit.edu/projects/editor/
Scratch Desktop app: https://scratch.mit.edu/download
Scratch Desktop app for Linux: https://scratux.org/
Sugar is an open source educational software suite originally written for the OLPC (One Laptop Per Child) program that’s written in Python with GTK.
There’s a web-based version of sugar: https://try.sugarizer.org/
There’s a bootable USB stick version of Sugar called “Sugar on a Stick”: https://wiki.sugarlabs.org/go/Sugar_on_a_Stick/Installation
Sugar works on a $35 Raspberry Pi 3b+ ARM computer: https://sugarlabs.org/sugar-for-raspberry-pi/
ABC Mouse is a reading, math, and social studies curriculum with a monthly subscription with apps for phone, tablet, and computer.
ABC Mouse sponsors PBS Kids
Khan Academy Kids¶
Khan Academy Kids is an app for kids from TODO years
There are also some Early Math exercises on regular Khan Academy:
There is a map of Common Core math to Khan Academy math materials for K-8 and highschool: https://www.khanacademy.org/commoncore/map
As well as a EurekaMath/EngageNY (New York) math curriculum for 3-8 and highschcool: https://www.khanacademy.org/math/engageny
There are lots of great subjects to learn and review with Khan Academy; including a number of Advanced Placement (AP) courses:
All Khan Academy content is Creative Commons BY-NC-SA licensed.
It is perfectly okay to use Khan Academy content in schools and universities.
Khan Academy is funded entirely by donations:
Khan Academy SAT prep¶
“Amazon FreeTime Unlimited is an all-in-one subscription for kids that offers unlimited access to thousands of kid-friendly books, movies, TV shows, educational apps, and games.”
App limits, screen time limits, device bedtime, content filters
No social media, no in-app purchases
There’s a kids version of the Kindle Fire tablets that has a case
There are third-party cases with a handle and a stand
Facebook Messenger Kids¶
Messenger Kids is a free video calling and messaging app designed for kids to connect with close friends and family from their tablet or smartphone. Kids can only connect with parent-approved contacts, which creates a more controlled environment. Group or one-on-one video calls with loved ones are more fun with interactive masks, reactions and sound effects.
Facebook was originally for college students at approving colleges and universities with .edu email addresses.
Facebook is now for the whole community.
SimCity: BuildIt is a city-building simulation game that teaches about civil infrastructure (fire, water, police, health, sewage, roads, public parks, property values) commodities trading, production of raw materials and goods, and opportunity cost.
PBS Kids is programming for children.
There are dedicated PBS Kids TV stations in many markets.
PBS Kids is supported by donations:
PBS Kids Video App¶
The PBS Kids Video app has full episodes, a live local PBS feed, and professional captions.
Sesame Street premiered in 1969.
Sesame Street teaches counting, spelling, social skills, social inclusion, not being a grouch, and lots of things:
Daniel Tiger’s Neighborhood¶
Daniel Tiger’s Neighborhood is a Fred Rogers Company production.
Daniel Tiger teaches social skills.
Daniel Tiger for Parents¶
Songs of Daniel Tiger’s Neighborhood
Peg + Cat¶
Peg + Cat is a Fred Rogers Company production.
Peg + Cat teaches math.
Super Why teaches letters, words, and reading.
Ready Jet Go!¶
Ready Jet Go! teaches science like physics and space, and interpersonal dynamics.
NASA’s Jet Propulsion Laboratory (JPL)
Wild Kratts teaches about animals and our environment.
What is it like to be the animals?
What are their habitats like?
What do they eat?
Odd Squad teaches basic math and critical reasoning.
Odd Squad is a Fred Rogers Company production.
It’s important for us to understand the systems within which the systems we build survive.
Cosmos: A Personal Voyage¶
First aired on PBS in 1980
Cosmos: A Spacetime Odyssey¶
First aired on National Geographic channel in 2014
Cosmos: Possible Worlds¶
First aired on National Geographic channel in 2020
One Strange Rock¶
Blue Planet II¶
Planet Earth II¶
Mobile phone family plan GPS¶
Academia created the Internet and the World Wide Web for sharing academic information; in ASCII.
Sometimes, the best thing to do is to format or totally reset a computer. Before formatting, you should backup or have already backed up important data.
OpenDNS, Google Family Link, and Amazon FreeTime are examples of family-safe internet filter services that do their best to avoid censoring the freedom of information necessary for a functioning democracy.
Sometimes there a bad things in the world that moms and dads need to know about in order to make good decisions.
Cybersecurity for all ages¶
OWASP Juice Shop¶
OWASP Juice Shop is a deliberately vulnerable web application written with Node.js.
“Pwning OWASP Juice Shop” is the official companion guide for this project. It will give you a complete overview of the vulnerabilities found in the application including hints how to spot and exploit them. In the appendix you will even find complete step-by-step solutions to every challenge.
To run the Juice Shop application on your local machine where you may have record of authorized permission to hack:
Information asymmetry is an assumption that tends not to hold over time. Is quantum information ever lost?
“Why Quantum Information is Never Destroyed | [PBS] Space Time” https://www.youtube.com/watch?v=HF-9Dy6iB_4
In the US, ISPs can sell internet usage history. There was a bill specifically prohibiting such sale, which has since been cancelled by the current FCC administration.
Law, Terms of Service, and Privacy Policies define how you and your kids’ information can be used to pay for the cost of a service.
There is need to investigate the world.
There is need to keep people safe.
See: Safety Extensions
EFF (Electronic Frontiers Foundation) is generally on top of things. https://www.eff.org/
Children’s Online Privacy Protection Act¶
Freedom of Speech
Protecting Children (from things we haven’t discussed yet)
DNS Content Filtering¶
DNS domain names are resolved to IP addresses by sending a request to and receiving a reply from a DNS nameserver.
DNS is used to lookup an IPv4 (“A record”) or an IPv6 (“AAAA record” / “quad-a record”) address (“127.0.0.1”, “::1”) for a domain name (“localhost.org”).
Most systems will attempt to lookup the IP address for a domain name from a local
C:\Windows\System32\Drivers\etc\hostsfile before sending a request to one of the DNS nameservers listed in
Instead of everyone regularly downloading an
/etc/hostsfile containing every domain and IP, we have DNS.
DNS is an OSI Layer 7 (“application layer”) network protocol for cached distributed key-value lookup that’s just about as old as the internet.
DNS records are typically cached (stored locally) on first request: a DNS resolver cache is typically not flushed until the browser and/or operating system are restarted. DNS lookups will be served from the local cache until the DNS record TTL expires or the cache is flushed.
DNS nameserver IPs can be set on the router and/or on a particular machine.
DNS nameserver addresses can be set manually or automatically from whatever is listed in a DHCP response.
When a device connects to a network, it broadcasts a request for a DHCP server (“DHCPDiscover”). The router or gateway runs a DHCP server daemon process which replies to the DHCPDiscover request with a DHCP response (“DHCPOffer”) that contains a unique IP address for the requesting device to assign to itself, a subnet from which IP routes can be created, a gateway IP to use as the default route, one or more DNS nameserver IPs, and maybe an NTP time server address.
Typically, when a router gets a public IP from the ISP over DHCP, it also receives the ISP’s DNS nameserver IPs; which it will use by default itself and relay requests to on behalf of devices on the LAN which request DNS.
Depending on the operating system, you may need admin rights to change the DNS nameserver IPs for a given connection for a given user.
A VPN, DNS over HTTPS (DoH), and DNS over TLS (DoT) can bypass any DNS resolver configuration on the router or the device.
Many (free) wireless hotspots will not work with custom DNS resolver IPs because of the way their captive portal attempts to redirect any request for any URL to the hotspot login page.
In the US, ISPs are allowed to sell customers’ DNS usage history (regardless of the unknown age of the user(s))
There are third-party DNS services which pledge not to sell DNS usage history.
The free OpenDNS FamilyShield DNS IPs are:
126.96.36.199 188.8.131.52 ::ffff:d043:de7b ::ffff:d043:dc7b
OpenDNS VIP costs $20/yr for custom whitelists and log review.
Cisco purchased OpenDNS in 2015.
You can tell whether OpenDNS is configured from: https://welcome.opendns.com/
CleanBrowsing.org is a DNS-based content filtering service with support for encrypted DNS: DNS over TLS (port 853) and DNScrypt (port 8443).
184.108.40.206 220.127.116.11 2a0d:2a00:1:: 2a0d:2a00:2::
18.104.22.168 22.214.171.124 2a0d:2a00:1::1 2a0d:2a00:2::1
126.96.36.199 188.8.131.52 2a0d:2a00:1::2 2a0d:2a00:2::2
Paid Custom CleanBrowsing.org costs $55/year (Families), $110/year (Small Organizations), to $220/year (Large Organizations).
Enforcing SafeSearch with DNS¶
(This is how CleanBrowsing.org DNS enforces SafeSearch, too)
Safe Search Service