diff --git a/lab-tama/.eslintignore b/lab-tama/.eslintignore
new file mode 100644
index 0000000..05b1cf3
--- /dev/null
+++ b/lab-tama/.eslintignore
@@ -0,0 +1,5 @@
+**/node_modules/*
+**/vendor/*
+**/*.min.js
+**/coverage/*
+**/build/*
diff --git a/lab-tama/.eslintrc.json b/lab-tama/.eslintrc.json
new file mode 100644
index 0000000..886827f
--- /dev/null
+++ b/lab-tama/.eslintrc.json
@@ -0,0 +1,27 @@
+{
+  "env": {
+    "browser": true,
+    "node": true,
+    "commonjs": true,
+    "jest": true,
+    "es6": true
+  },
+  "globals": {
+    "err": true,
+    "req": true,
+    "res": true,
+    "next": true
+  },
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "sourceType": "module"
+  },
+  "rules": {
+    "no-console": "off",
+    "indent": [ "error", 2 ],
+    "quotes": ["error", "single", { "allowTemplateLiterals": true }],
+    "comma-dangle": ["error", "always-multiline"],
+    "semi": [ "error", "always" ],
+    "linebreak-style": ["error", "unix"]
+  }
+}
diff --git a/lab-tama/.gitignore b/lab-tama/.gitignore
new file mode 100644
index 0000000..c14edf8
--- /dev/null
+++ b/lab-tama/.gitignore
@@ -0,0 +1,147 @@
+# 401 JS
+db
+**.env
+temp
+build
+
+# Created by https://www.gitignore.io/api/vim,osx,node,linux,windows
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+
+### OSX ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Vim ###
+# swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+# session
+Session.vim
+# temporary
+.netrwhist
+# auto-generated tag files
+tags
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# End of https://www.gitignore.io/api/vim,osx,node,linux,windows
+
+.DS_Store
diff --git a/lab-tama/lib/arithmatic.js b/lab-tama/lib/arithmatic.js
new file mode 100644
index 0000000..cb30978
--- /dev/null
+++ b/lab-tama/lib/arithmatic.js
@@ -0,0 +1,15 @@
+'use strict';
+
+module.exports = exports = {};
+
+exports.add = function(x, y) {
+  if (arguments.length !== 2) throw new Error ('not a number');
+  if (typeof x !== 'number' || typeof y !== 'number') return null;
+  return x + y;
+};
+
+exports.subtract = function (x, y) {
+  if (arguments.length !== 2) throw new Error('not a number');
+  if (typeof x !== 'number' || typeof y !== 'number') return null;
+  return x - y;
+};
diff --git a/lab-tama/lib/greet.js b/lab-tama/lib/greet.js
new file mode 100644
index 0000000..a819fe7
--- /dev/null
+++ b/lab-tama/lib/greet.js
@@ -0,0 +1,9 @@
+'use strict';
+
+module.exports = function(name) {
+
+  if (arguments.length !== 1) throw new Error('name not provided');
+  if (typeof name !== 'string') return null;
+  
+  return `hello ${name}`;
+};
diff --git a/lab-tama/test/arithmatic-test.js b/lab-tama/test/arithmatic-test.js
new file mode 100644
index 0000000..c51c17c
--- /dev/null
+++ b/lab-tama/test/arithmatic-test.js
@@ -0,0 +1,20 @@
+'use strict';
+
+const arithmatic = require('../lib/arithmatic.js');
+const assert = require('assert');
+
+describe('Arithmatic Module', function() {
+  describe('#add', function(){
+    it('it should return the sum of two numbers', function() {
+      var result = arithmatic.add(5,8);
+      assert.ok(result === 13, 'not equal to 13');
+    });
+
+    it('should throw a non-number error', function(){
+      assert.throws(function() {
+        arithmatic.add();
+      }, 'error not thrown');
+    });
+  });
+});
+
diff --git a/lab-tama/test/greet-test.js b/lab-tama/test/greet-test.js
new file mode 100644
index 0000000..a16368c
--- /dev/null
+++ b/lab-tama/test/greet-test.js
@@ -0,0 +1,25 @@
+'use strict';
+
+const greet = require('../lib/greet.js');
+const assert = require('assert');
+
+describe('Greet Module', function() {
+  it('it should return null if name is not a string', function() {
+    var result = greet(1);
+    assert.ok(result === null, 'not equal to null');
+  });
+  it ('it should return hello world', function() {
+    var result = greet('world');
+    console.log('result', result);
+    assert.ok(result === 'hello world', 'not equal to hello world');
+  });
+  it ('should throw a missing name error', function() {
+    assert.throws(function() {
+      greet();
+    }, 'error not thrown');
+  });
+});
+
+
+
+