Changing The Way You Perceive Math!

Great News...                                        And Perceptions Math is having a SALE!

IMPORTANT:  If you downloaded the Sale flyer on or before 3-19-19, please reprint                                    There was a typo on the address!  The corrected form is below!

Perceptions Math is a new company that is selling the materials once sold by Teach 4 Mastery, Inc. If you had an existing account with Teach4Mastery, you can still login and access the videos and other content you always have from here.

The owner of Perceptions Math was the Co-Author of the Perceptions Program and also the Co-Developer of the MasterPieces and MasterFraction manipulatives.  Therefore, she is extremely knowledgeable in all aspects of the program.  

If you have questions or would like to order, please contact Angie at or at 800-745-8212. 

      The sale is good through 5-31-19         with Price Reductions Up to 25%!

Please note that the shopping cart does not reflect the new pricing, so here is a printable PDF with the sale! Feel free to email me or call me for more information or shipping quotes! Click Here: Updated Perceptions Math Sale (good through 5-31-19)

"Dan, You are amazing!  Teach4mastery is truly a game changer and has added 20 more years to my teaching career!!! Thanks!"

LaKeisha Williams, Teacher - Candlelight Christian Academy, Lake Wales, FL

"This workshop was great! Hands-on, engaging, and informative. This takes thinking about math to a different level!"

Bianca Farantelli, Teacher, Syosset Public Schools, NY

"I have been able to teach my son so much more than adding & subtracting - also multiplying and dividing and common factors. We did more in 6 mos than his school did in 3 yrs. "

Vikki Rosich, Homeschool Mom, MI

"Teach 4 Mastery training with Dan Sinclair was one of the best professional development trainings we have had in years."  

Megan McGowan, M.S., Head of Lower School, Jemicy School, MD

"This teacher is a huge fan because of what I've seen with my students in such a short time. They are engaged in their learning, excited to learn, and proud of their growth."

Leslie Allen, Math Interventionist, Garland TX

"I am so impressed by the care and professionalism, details and quality put into the training today. Dan, you are an amazing presenter!"

Cindy Pennington - Pennington Instructional Connections, OH

"I love the manipulatives and online resources and I am highly appreciative of your efforts. You have continuously offered updated videos and webinars to support the use of your product. You have gone out of your way to make yourself available to us."

Vanessa Avis, ESE Program Facilitator - Santa Rosa Public Schools, FL

"We have had good success with Perceptions and it supports our methodology for intensive, multi-sensory academic remediation."

Rachel Herman, MA, PCET, Director - Learning for All: Educational Therapy for Academic Success, San Diego, CA

"This was a great workshop! I loved how hands-on it was. It gave me lots of new ways to help my students learn and understand math!" 

Melissa Kravitz, Teacher, Norwich Public Schools, CT

Love it! Your materials and manipulative filled a gap in providing resources to special education teachers. Your approach and materials were unique and made sense in terms of how to approach instruction for students rather than just help them "get to the answer".

Kara Bratton, Resource Center Director - Lutheran Special Education Ministries, MI

"I love it, and my students love it. "

Lisa Alape, Teacher - Middletown Public Schools, CT

I like the set up of the workbooks and also the numbered blocks. They fit together nicely, are numbered and more vivid in color than some other base-10 blocks I've used in the past." 

Julie Moses, Teacher - Dublin Public Schools, OH