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Jakob Wozniak

Washington, DC

17,896

Total Points

•
2,983

Ruby

2978 pts
Achievements

5 pts
Forum
•
2,891

JavaScript

2891 pts
Achievements

0 pts
Forum
•
2,637

Design

2634 pts
Achievements

3 pts
Forum
•
2,024

CSS

1987 pts
Achievements

37 pts
Forum
•
1,749

Android

1749 pts
Achievements

0 pts
Forum
•
1,726

Java

1685 pts
Achievements

41 pts
Forum
•
1,400

HTML

1388 pts
Achievements

12 pts
Forum
•
1,168

Development Tools

1165 pts
Achievements

3 pts
Forum
•
462

Digital Literacy

462 pts
Achievements

0 pts
Forum
•
289

Business

289 pts
Achievements

0 pts
Forum

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

208 Achievements

Achievement
Introduction to Front-End Frameworks

Framework Basics

Achieved
Jun 26, 2016
Achievement
Lists with RecyclerViews

Android Lists and Adapters (2015)

Achieved
Jun 4, 2016
Achievement
Using Parcelable Data

Android Lists and Adapters (2015)

Achieved
May 27, 2016
Achievement
Custom ListViews

Android Lists and Adapters (2015)

Achieved
May 27, 2016
Achievement
Standard ListViews

Android Lists and Adapters (2015)

Achieved
May 26, 2016
Achievement
Updating the Data Model

Android Lists and Adapters (2015)

Achieved
May 24, 2016
Achievement
Publishing on Google Play

Publish an Android App

Achieved
May 23, 2016
Achievement
Hooking up the Model to the View

Build a Weather App (2015)

Achieved
May 21, 2016
Achievement
Building the Weather UI

Build a Weather App (2015)

Achieved
May 20, 2016
Achievement
Working with JSON

Build a Weather App (2015)

Achieved
May 18, 2016
Achievement
Concurrency and Error Handling

Build a Weather App (2015)

Achieved
May 16, 2016
Achievement
Networking

Build a Weather App (2015)

Achieved
May 15, 2016
Achievement
Exploring an API

Build a Weather App (2015)

Achieved
May 2, 2016
Achievement
Finishing the User Interface

Build an Interactive Story App (Retired)

Achieved
May 1, 2016
Achievement
The Model-View-Controller Pattern

Build an Interactive Story App (Retired)

Achieved
May 1, 2016
Achievement
Intents and Multiple Activities

Build an Interactive Story App (Retired)

Achieved
Apr 29, 2016
Achievement
User Input

Build an Interactive Story App (Retired)

Achieved
Apr 29, 2016
Achievement
Testing and Debugging

Build a Simple Android App

Achieved
Apr 27, 2016
Achievement
Improving Our Code

Build a Simple Android App

Achieved
Apr 26, 2016
Achievement
Basic Android Programming

Build a Simple Android App

Achieved
Apr 26, 2016
Achievement
Creating the Screen Layout

Build a Simple Android App

Achieved
Apr 26, 2016
Achievement
Getting Started with Android

Build a Simple Android App

Achieved
Apr 25, 2016
Achievement
Event Planning

Build a JavaFX Application

Achieved
Apr 24, 2016
Achievement
Build a Pomodoro App

Build a JavaFX Application

Achieved
Apr 23, 2016
Achievement
Design a Better App

Build a JavaFX Application

Achieved
Apr 22, 2016
Achievement
Advanced Tooling

Local Development Environments

Achieved
Apr 21, 2016
Achievement
IDE Exploration

Local Development Environments

Achieved
Apr 17, 2016
Achievement
How it Works

Local Development Environments

Achieved
Apr 17, 2016
Achievement
Ruby Standard Library: Part 1

Ruby Core and Standard Library

Achieved
Apr 16, 2016
Achievement
Ruby Core

Ruby Core and Standard Library

Achieved
Apr 15, 2016
Achievement
HTML Email Basics

HTML Email Design

Achieved
Apr 15, 2016
Achievement
Store Inventory Using Modules

Ruby Modules

Achieved
Apr 14, 2016
Achievement
Include and Extend

Ruby Modules

Achieved
Apr 9, 2016
Achievement
Ruby Core Modules

Ruby Modules

Achieved
Apr 5, 2016
Achievement
Ruby Module Basics

Ruby Modules

Achieved
Apr 5, 2016
Achievement
Input and Output

Build an Address Book in Ruby

Achieved
Mar 31, 2016
Achievement
Search

Build an Address Book in Ruby

Achieved
Mar 30, 2016
Achievement
Ruby Class Design

Build an Address Book in Ruby

Achieved
Mar 23, 2016
Achievement
Blocks Practice

Ruby Blocks

Achieved
Mar 20, 2016
Achievement
Working With Blocks

Ruby Blocks

Achieved
Mar 20, 2016
Achievement
Ruby Blocks

Ruby Blocks

Achieved
Mar 18, 2016
Achievement
Build a Simple Todo List Program

Ruby Booleans

Achieved
Mar 18, 2016
Achievement
Ruby Booleans

Ruby Booleans

Achieved
Mar 16, 2016
Achievement
Build a Bank Account Class

Ruby Objects and Classes

Achieved
Mar 15, 2016
Achievement
Ruby Variables and Methods

Ruby Objects and Classes

Achieved
Mar 15, 2016
Achievement
Ruby Objects and Classes

Ruby Objects and Classes

Achieved
Mar 15, 2016
Achievement
Build a Simple Contact List

Ruby Loops

Achieved
Mar 15, 2016
Achievement
Ruby Iteration

Ruby Loops

Achieved
Mar 15, 2016
Achievement
Ruby Loops

Ruby Loops

Achieved
Mar 15, 2016
Achievement
Build a Grocery List Program

Ruby Collections

Achieved
Mar 12, 2016
Achievement
Ruby Hashes

Ruby Collections

Achieved
Mar 11, 2016
Achievement
Ruby Arrays

Ruby Collections

Achieved
Mar 9, 2016
Achievement
Ruby Logical Operators

Ruby Operators and Control Structures

Achieved
Mar 8, 2016
Achievement
Ruby Control Structures

Ruby Operators and Control Structures

Achieved
Mar 8, 2016
Achievement
Ruby Operators

Ruby Operators and Control Structures

Achieved
Mar 8, 2016
Achievement
Ruby Methods

Ruby Basics (Retired)

Achieved
Mar 7, 2016
Achievement
Ruby Numbers (Ruby Basics)

Ruby Basics (Retired)

Achieved
Mar 7, 2016
Achievement
Ruby Strings (Ruby Basics)

Ruby Basics (Retired)

Achieved
Mar 7, 2016
Achievement
How Ruby Works

Ruby Basics (Retired)

Achieved
Mar 7, 2016
Achievement
WWW

How the Web Works

Achieved
Mar 2, 2016
Achievement
The Internet

How the Internet Works

Achieved
Mar 1, 2016
Achievement
Computer Languages

Computer Basics

Achieved
Feb 29, 2016
Achievement
Computer Basics

Computer Basics

Achieved
Dec 7, 2015
Achievement
Introduction to Video Games

How to Make a Video Game

Achieved
Dec 7, 2015
Achievement
Graphical User Interfaces

Build a JavaFX Application

Achieved
Nov 29, 2015
Achievement
Efficiency!

Java Data Structures

Achieved
Nov 26, 2015
Achievement
Exploring the Java Collections Framework

Java Data Structures

Achieved
Nov 25, 2015
Achievement
Organizing Data

Java Data Structures

Achieved
Nov 21, 2015
Achievement
Getting There

Java Data Structures

Achieved
Nov 19, 2015
Achievement
Delivering the MVP

Java Objects (Retired)

Achieved
Nov 17, 2015
Achievement
Creating the MVP

Java Objects (Retired)

Achieved
Nov 16, 2015
Achievement
Harnessing the Power of Objects

Java Objects (Retired)

Achieved
Nov 14, 2015
Achievement
Meet Objects

Java Objects (Retired)

Achieved
Nov 12, 2015
Achievement
Perfecting the Prototype

Java Basics

Achieved
Nov 12, 2015
Achievement
Using your New Tools

Java Basics

Achieved
Nov 12, 2015
Achievement
Getting Started with Java

Java Basics

Achieved
Nov 11, 2015
Achievement
Advanced Sass Concepts

Sass Basics (retired)

Achieved
Nov 11, 2015
Achievement
Speeding up Workflow With Sass

Sass Basics (retired)

Achieved
Nov 11, 2015
Achievement
Variables, Mixins, and Extending Selectors

Sass Basics (retired)

Achieved
Nov 10, 2015
Achievement
Getting Started with Sass

Sass Basics (retired)

Achieved
Nov 9, 2015
Achievement
Creating Home Page Assets

Illustrator Foundations

Achieved
Nov 9, 2015
Achievement
Applying Effects

Illustrator Foundations

Achieved
Nov 6, 2015
Achievement
How to Draw in Illustrator

Illustrator Foundations

Achieved
Nov 5, 2015
Achievement
Adding Color and Type

Illustrator Foundations

Achieved
Nov 5, 2015
Achievement
Finalizing the Project

Brand Identity Basics

Achieved
Oct 31, 2015
Achievement
Case Studies and Examples

Brand Identity Basics

Achieved
Oct 30, 2015
Achievement
The Brand Identity Design Process

Brand Identity Basics

Achieved
Oct 30, 2015
Achievement
Introduction to Brand Identity

Brand Identity Basics

Achieved
Oct 30, 2015
Achievement
Better SEO Through Tools

SEO Basics

Achieved
Oct 30, 2015
Achievement
Better SEO Through Code

SEO Basics

Achieved
Oct 30, 2015
Achievement
Better SEO Through Content

SEO Basics

Achieved
Oct 29, 2015
Achievement
Introduction to SEO

SEO Basics

Achieved
Oct 29, 2015
Achievement
Creating an Icon

Illustrator Foundations

Achieved
Oct 18, 2015
Achievement
Introduction to Illustrator

Illustrator Foundations

Achieved
Oct 13, 2015
Achievement
Workflow Basics

Photoshop Foundations

Achieved
Oct 12, 2015
Achievement
Slices & Save for Web

Photoshop Foundations

Achieved
Oct 12, 2015
Achievement
Vector Shapes

Photoshop Foundations

Achieved
Oct 10, 2015
Achievement
Type Tools

Photoshop Foundations

Achieved
Oct 10, 2015
Achievement
Masks Basics

Photoshop Foundations

Achieved
Oct 9, 2015
Achievement
Layer Basics

Photoshop Foundations

Achieved
Oct 8, 2015
Achievement
Workspace Basics

Photoshop Foundations

Achieved
Oct 8, 2015
Achievement
Grid Layout

CSS Layout Techniques

Achieved
Oct 7, 2015
Achievement
Flexbox Layout

CSS Layout Techniques

Achieved
Oct 6, 2015
Achievement
Positioning Schemes

CSS Layout Techniques

Achieved
Oct 5, 2015
Achievement
Float Layout

CSS Layout Techniques

Achieved
Oct 4, 2015
Achievement
Display Modes

CSS Layout Techniques

Achieved
Oct 4, 2015
Achievement
Principles

Aesthetic Foundations

Achieved
Oct 2, 2015
Achievement
Elements

Aesthetic Foundations

Achieved
Oct 2, 2015
Achievement
The Logo Sprint

Logo Design Basics

Achieved
Oct 2, 2015
Achievement
Logo Design 101

Logo Design Basics

Achieved
Oct 1, 2015
Achievement
Final Project: Create a Typographic Site

Web Typography

Achieved
Oct 1, 2015
Achievement
Laying Out Type for the Web

Web Typography

Achieved
Sep 30, 2015
Achievement
Basic Web Typography

Web Typography

Achieved
Sep 29, 2015
Achievement
How to Choose and Use Webfonts

Web Typography

Achieved
Sep 29, 2015
Achievement
Introduction to Typography

Web Typography

Achieved
Sep 28, 2015
Achievement
Improving Usability

Usability Foundations

Achieved
Sep 28, 2015
Achievement
Mobile Usability

Usability Foundations

Achieved
Sep 25, 2015
Achievement
Website Usability

Usability Foundations

Achieved
Sep 25, 2015
Achievement
What is Usability?

Usability Foundations

Achieved
Sep 25, 2015
Achievement
Design Foundations Final

Design Foundations

Achieved
Sep 25, 2015
Achievement
Becoming a Problem Solver

Design Foundations

Achieved
Sep 25, 2015
Achievement
Understanding Aesthetics

Design Foundations

Achieved
Sep 24, 2015
Achievement
Introduction to Design

Design Foundations

Achieved
Sep 24, 2015
Achievement
Moving Forward with UX

UX Basics

Achieved
Sep 24, 2015
Achievement
Tools UXers Use

UX Basics

Achieved
Sep 23, 2015
Achievement
How UXers Think

UX Basics

Achieved
Sep 23, 2015
Achievement
What Do User Experience Designers Do?

UX Basics

Achieved
Sep 22, 2015
Achievement
What is User Experience (UX)?

UX Basics

Achieved
Sep 21, 2015
Achievement
Introduction to Node.js

Node.js Basics (2014)

Achieved
Sep 21, 2015
Achievement
Using a jQuery Carousel

Using jQuery Plugins

Achieved
Sep 20, 2015
Achievement
Add a Sticky Navigation Bar

Using jQuery Plugins

Achieved
Sep 19, 2015
Achievement
Introducing jQuery Plugins

Using jQuery Plugins

Achieved
Sep 18, 2015
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
Sep 17, 2015
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
Sep 16, 2015
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
Sep 16, 2015
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
Sep 15, 2015
Achievement
Workflows

Git Basics

Achieved
Sep 15, 2015
Achievement
Working With Remote Repositories

Git Basics

Achieved
Sep 15, 2015
Achievement
Merging

Git Basics

Achieved
Sep 14, 2015
Achievement
Branches

Git Basics

Achieved
Sep 14, 2015
Achievement
Getting Started With Git

Git Basics

Achieved
Sep 14, 2015
Achievement
Why Version Control Matters

Git Basics

Achieved
Sep 14, 2015
Achievement
Installing Programs

Console Foundations

Achieved
Sep 13, 2015
Achievement
Environment and Redirection

Console Foundations

Achieved
Sep 13, 2015
Achievement
Console Processes

Console Foundations

Achieved
Sep 12, 2015
Achievement
Console Users and Permission

Console Foundations

Achieved
Sep 11, 2015
Achievement
Moving Around in the Console

Console Foundations

Achieved
Sep 11, 2015
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
Sep 11, 2015
Achievement
Web Apps

Accessibility

Achieved
Sep 11, 2015
Achievement
Websites

Accessibility

Achieved
Sep 11, 2015
Achievement
Introduction

Accessibility

Achieved
Sep 10, 2015
Achievement
Quiz Practice Project

Object-Oriented JavaScript (2015)

Achieved
Sep 10, 2015
Achievement
Prototypal Inheritance

Object-Oriented JavaScript (2015)

Achieved
Sep 10, 2015
Achievement
Constructor Functions & Prototypes

Object-Oriented JavaScript (2015)

Achieved
Sep 10, 2015
Achievement
Introduction to Methods

Object-Oriented JavaScript (2015)

Achieved
Sep 9, 2015
Achievement
Advanced Selectors

CSS Selectors

Achieved
Sep 9, 2015
Achievement
Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achieved
Sep 9, 2015
Achievement
Selectors - Beyond the Basics

CSS Selectors

Achieved
Sep 9, 2015
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
Sep 8, 2015
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
Sep 8, 2015
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
Sep 8, 2015
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
Sep 7, 2015
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Sep 6, 2015
Achievement
Media Queries

Responsive Layouts

Achieved
Sep 6, 2015
Achievement
Responsive Theory

Responsive Layouts

Achieved
Sep 5, 2015
Achievement
Custom Media Players

HTML Video and Audio (Retired)

Achieved
Sep 3, 2015
Achievement
Captioning Video

HTML Video and Audio (Retired)

Achieved
Sep 3, 2015
Achievement
Media Basics

HTML Video and Audio (Retired)

Achieved
Sep 3, 2015
Achievement
Traversing and Manipulating the DOM with JavaScript

Interactive Web Pages with JavaScript

Achieved
Sep 3, 2015
Achievement
Selecting Elements and Adding Events with JavaScript

Interactive Web Pages with JavaScript

Achieved
Sep 1, 2015
Achievement
JavaScript and the DOM

Interactive Web Pages with JavaScript

Achieved
Sep 1, 2015
Achievement
Structuring Tables

HTML Tables

Achieved
Sep 1, 2015
Achievement
Table Basics

HTML Tables

Achieved
Sep 1, 2015
Achievement
Creating a Simple Drawing Application

jQuery Basics (2014)

Achieved
Sep 1, 2015
Achievement
Creating a Password Confirmation Form

jQuery Basics (2014)

Achieved
Sep 1, 2015
Achievement
Creating a Mobile Drop Down Menu

jQuery Basics (2014)

Achieved
Sep 1, 2015
Achievement
Creating a Simple Lightbox

jQuery Basics (2014)

Achieved
Sep 1, 2015
Achievement
Creating a Spoiler Revealer

jQuery Basics (2014)

Achieved
Sep 1, 2015
Achievement
Introduction to jQuery

jQuery Basics (2014)

Achieved
Sep 1, 2015
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Aug 31, 2015
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Aug 31, 2015
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Aug 31, 2015
Achievement
Choosing Options

HTML Forms

Achieved
Aug 30, 2015
Achievement
Organizing Forms

HTML Forms

Achieved
Aug 30, 2015
Achievement
Form Basics

HTML Forms

Achieved
Aug 30, 2015
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
Aug 30, 2015
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
Aug 29, 2015
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
Aug 29, 2015
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
Aug 29, 2015
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
Aug 28, 2015
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
Aug 26, 2015
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
Aug 26, 2015
Achievement
Basic Layout

CSS Basics (2014)

Achieved
Aug 24, 2015
Achievement
The Box Model

CSS Basics (2014)

Achieved
Aug 23, 2015
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
Aug 19, 2015
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
Aug 18, 2015
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Aug 18, 2015
Achievement
Debugging HTML and CSS Problems

How to Make a Website

Achieved
Aug 17, 2015
Achievement
Sharing a Website

How to Make a Website

Achieved
Aug 17, 2015
Achievement
Responsive Web Design and Testing

How to Make a Website

Achieved
Aug 17, 2015
Achievement
Adding Pages to a Website

How to Make a Website

Achieved
Aug 17, 2015
Achievement
Styling Web Pages and Navigation

How to Make a Website

Achieved
Aug 17, 2015
Achievement
Customizing Colors and Fonts

How to Make a Website

Achieved
Aug 17, 2015
Achievement
CSS: Cascading Style Sheets

How to Make a Website

Achieved
Aug 16, 2015
Achievement
Creating HTML Content

How to Make a Website

Achieved
Aug 15, 2015
Achievement
HTML First

How to Make a Website

Achieved
Aug 15, 2015
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
Aug 15, 2015
Achievement
Newbie

Achieved
Aug 15, 2015