Phase:  After/Explain/Elaborate 
Activity:  Get the students thinking by asking them how many different ways they can get the number "6" by adding or subtracting (or multiplying or dividing) single digit numbers. Project the KenKen game "How to Play" page for the class to view as a whole group and then demonstrate with an example. KenKen simple tutorial (for lower level students) Expert KenKen tutorial (for more advanced students) Students will then go to the website, choose a game to match their level, and work through puzzles at their own pace.

Assessment Strategies:  Students will show the teacher their "congratulations" screen when they complete a puzzle. The teacher can also give students a printed puzzle to solve as an assessment. 
Advanced Preparation:  Students will need access to computers/devices with Internet access. Teacher should be familiar with the How to Play page. Teacher can subscribe to the free KenKen Classroom Program to received free weekly printable puzzles of varying difficulty. 
Variation Tips (optional):  
Notes or Recommendations (optional):  This resource can be tailored to differentiate for a wide range of learner abilities. Students should start with easier puzzles as they learn how to play the game and then be encouraged to try more challenging ones as they become more proficient. By subscribing to the Kenken Classroom Program, teachers can receive weekly emails of printable KenKen puzzles of varying difficulty. 
Keywords and Search Tags:  addition, division, facts, fluency, logical reasoning, multiplication, problem solving, subtraction 