Three Part Lessons: The 3 Part Lesson is used in math to foster math talk. The three parts of the three part lesson are, Before, During and After, which are also referred to as Activating Prior Knowledge, Hands On, and Congress. Teachers engage students with a 5 -10 minute mini-lesson which has a clear learning goal and helps to activate prior knowledge. Then the students actively participate in a task using a variety of strategies to solve the problem. Finally, the teacher has the students reflect on their work to discuss the various strategies they used to solve the task.
Please download the Three Part Lesson Template or any of the lesson plans posted. Don't forget to post your Three Part Lessons!

Please check out this webcast of a Three Part Lesson put out by the Literacy and Numeracy Secretariat.
Three Part Lesson Webcast

Thank you to all the teachers who contribute to the wiki. Please note you can use the lessons as they are or adapt them to better meet the needs of your students. By using parallel tasks or open-ended questions many teachers can accommodate for the various needs of learners in their classroom.






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Kindergarten Unit on Measurement: Contributed by Colleen Bellehumeur, Maria Siddiqui, Ginny Yee




Grade 2 Unit on Measurement: Contributed by Ilianna Givelos, Tania Decaudin-Pendergast, Sarah Gibson, Lillan Papel, Waheda Hofioni



Grade 4 - 6 Measurement: Contributed by Laura Segreto, MargaretGorham, Debbie Stockton, Shalini Khanna





Grade 5 Probability Unit: Contributed by Sandra Van Eslander, Candace Minifie, John Hong, Arwyn Carpenter



Grade 6 Probability Unit: Contributed by Kisrene McKenzie, Leslie Jennings, Jonathan Ball



Grade 6&7 Data Management Unit: Contributed by Sandra DeAngelis-Mullins, Carol Lynn Wallace, Stephanie Yoreff, Maria Kouremenos



Grade 3 Data Management Unit Map and Lesson Plans. Contributed by Chris Hyatt.






Grade 3 Measurement Lesson on the Area of a Triangle. Contributed by Bev Myhal.


Grade 3 Number Sense and Numeration. Contributed by Stacey Lortz.

Grade 2/3 Number Sense and Numeration, Problem Solving Steps. Contributed by Krystine Buzny.


Grade One TIme: Contributed by Nancy Presedo, Nicole Brown, Tamara Foster, Colleen Bellehumeur.




Grade One & Two Geometry2D: Contributed by Nancy Presedo, Nicole Brown, Tamara Foster, Colleen Bellehumeur.
These unit consists of 11 lessons in 3 part lesson format. The activities have been taken from VandeWalle and the Guide to Effective Instruction.




Please check out Geometry Bingo contributed by Kelly Smith


Grade One Subtraction: Contributed by Dalia Mukherjee, Sergio Villanueva Vivanos, Colleen Bellehumeur.



Grade Two/Three Double Digit Addition Unit: Contributed by Diana Afonso, Steven Borges, Martina Lomovsek, Lois Gadway, Sarah Ali, Colleen Bellehumeur.





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Grade Two/Three Geometry Jeopardy Game, contributed by Steve Borges, Diana Afonso, Colleen Bellehumeur



Grade Two Geometry 3D: Contributed by Dawn O'Keefe, Colleen Bellehumeur. The lessons are based on the Guides to Effective Instruction for Geometry.



Grade Two / Three Multiplication and Division Unit: Contributed by Diana Afonso, Steve Borges, Colleen Bellehumeur





EQAO Questions: These lesson plans look at the learning needed to answer the EQAO question. These lessons have been placed into a three-part lesson to promote problem solving and math talk. Contributed by Martina Lomovsek, Lois Gadway, Diana Afonso, Steve Borges, Colleen Bellehumeur.








EQAO After School Session, April 11/12
The lesson plans below were created at the EQAO session held at Park Lawn. Please feel free to change the lessons to better meet the needs of your class. The teachers looked at questions from Marian Small's book Good Questions, Great Ways to Differentiate Math. The teachers then look at an EQAO question and wrote a three part lesson to match the question.











EQAO After School Session April 18/12
The Assessment FOR Learning tools were created at the EQAO session held at Park Lawn by the teachers who participated in the workshop. The tool can be used at the beginning and throughout the unit to help you assess students and to guide your practice. The questions were taken from a several Primary EQAO tests. The tool is intended to help you write observations, or anecdotal notes quickly. The mathematical thinking is listed from the least effective to most effective. The empty space to the left is for your seating plan. The template also includes the list of Strategies, Tools and Misconceptions that students can have about the mathematics. There are also guiding questions to help you guide students to a solution. I have included an empty template. Please share any Assessment For Learning (A4L) Tools you create!










Grade Six Geometry: Contributed by Mark Bedrosian, Craig Ashton, Colleen Bellehumeur


Illuminations Polygon Capture Game


Grade Six Conversion Measurement Unit: This unit was created by Grade 6 teachers in SW1 with the SW Math Instructional Leader Jane Silva and SW1 Math Coach. The contributing teachers were: Erin Sims-Conrad, Tara Paterson, David Zayachkowski, Peter Matheos, Colleen Bellehumeur.
A special thank you to Jane Phillips-Long for providing a funding to make this unit possible.


Grade Six: Measurement - Notebook file to support the SW1 Measurement Unit provided by Erin Sims.