Math-U-See Delta
Math-U-See keeps it simple and smart—clear pages, short lessons, and a mastery approach that helps math make sense from the very start! Already have a Demme Learning subscription? Customize math to remove the extra subscription card.
$199
Quantity:
Consumable
In a Curriculum Kit
Mastery Learning
Nonreligious
Please Note: The digital subscription portion of this product is non-returnable according to publisher policy.
2026 Fourth-Grade Curriculum Kit
Division is much easier to understand when students can see how it connects to the math they already know. Math-U-See Delta builds on a strong foundation in multiplication to help students develop confidence and mastery in division.
In Delta, your child will learn single-digit and multi-digit division, including problems with remainders. Through visual models, place-value strategies, and hands-on learning, students discover the relationship between multiplication and division while developing a deeper understanding of both operations.
Additional topics include problem-solving with all four operations, introductory fraction concepts, Roman numerals, angles, geometric shapes, area, volume, money, and real-world applications. These lessons help students apply division skills in meaningful contexts while expanding their overall understanding of mathematics.
Like all Math-U-See levels, Delta follows a mastery-based approach, introducing one concept at a time and emphasizing understanding before moving on. Video instruction, visual demonstrations, and incremental practice help students build both confidence and accuracy as they progress.
Instructional videos and teacher resources are accessed through Math-U-See's Essential Plan. Each subscription includes 2 course credits, supports up to 5 student seats, and provides access to activated levels for one year.
Designed for students who have mastered multiplication, Math-U-See Delta provides a strong foundation in division while preparing learners for fractions, decimals, and more advanced mathematical concepts in future levels.
(Need help picking a level? We’ve got placement tests ready for you.)
Look inside this book and read through a lesson to see how it might work for your family.
How to Use Math-U-See Delta
- Begin each lesson by watching the instructional video. You can watch it ahead of time and teach the concept yourself, or view it together with your student. The videos introduce each new concept step by step and demonstrate the Math-U-See approach in action.
- Before teaching, review the online teacher resources included through the Essential Plan. These materials provide teaching notes, practice suggestions, and answers, but most parents find that a quick review is all that's needed before getting started.
- After the lesson, choose the worksheets that best fit your student's level of understanding. Each lesson includes seven worksheets labeled A–G. Start with Worksheet A to introduce the concept, then add additional worksheets as needed for practice and review.
- Many families find that completing Worksheets A, D, and G provides a good balance of instruction, review, and challenge. However, one of Math-U-See's strengths is its flexibility. Students who need more practice can complete additional worksheets, while students who quickly master a concept can move ahead.
- Plan on completing approximately one lesson each week. With 30 lessons in the course, this pace allows ample time for instruction, practice, review, and mastery throughout the school year. If a concept needs more time, don't hesitate to slow down. Math-U-See is designed around mastery, not speed.
- Use the included manipulatives and visual demonstrations whenever appropriate. These tools help students develop a strong conceptual understanding before moving to more abstract mathematical thinking.
- By working at your student's pace and focusing on understanding rather than memorization, you'll build a solid foundation for success in mathematics.
The Essential Learning Set includes 1-Year Essential Plan Subscription Access, a Student Pack, and Integer Blocks.
Purchase this set if you have never taught Math-U-See before.
Universal Set
The Universal Set includes 1-Year Essential Plan Subscription Access, a Student Pack, Integer Blocks, and a printed Instructor Manual.
Purchase this set if you have never taught Math-U-See before, and feel like you would benefit from having a printed Instructor Manual.
Level Up Set (Digital Instructor Version)
The Level Up Set (Digital Instructor Version) includes 1-Year Essential Plan Subscription Access and a Student Pack.
Please note: Integer Blocks required. Purchase this set if you already own Integer Blocks.
Level Up Set (Printed Instructor Version)
The Level Up Set (Printed Instructor Version) includes 1-Year Essential Plan Subscription Access, a printed Instructor Manual, and a Student Pack.
Please note: Integer Blocks required. Purchase this set if you already own Integer Blocks.
Student Pack
The Student Pack includes the Student Workbook and Tests. The Student Pack is suitable for families with a second student.
Please note: Integer Blocks and Instructor Materials required. Purchase this set if you already own Integer Blocks and Online or Printed Instructor Materials.
Printed Instructor Manual Only
Printed Instructor Manual Only is a printed copy of the Instructor Manual for those who prefer to have it in print rather than online, or both.
This would typically be for those who purchased the Essential Set and realized they would like to have a printed book as well. If you want a bundle that includes a printed manual, order the Universal Set or the Level Up Set (Printed Instructor Version).
DVD Only
DVD Only is the level DVD with the Lesson Videos.
This is no longer included in any of the Math-U-See bundles. It can only be purchased separately.
1-Year Essential Plan Subscription Access Only
To purchase 12-month online access to instruction videos and online instruction manual as well as other resources, click here.
A note from Demme Learning: If you already have an active Demme Learning subscription, have already purchased a Math-U-See set that includes a subscription card, or have purchased a subscription card individually, please review the following before purchasing.
- The Demme Learning online subscription platform only allows one active subscription per account at a time.
- Subscriptions cannot be stacked, combined, or applied simultaneously to extend duration or unlock additional courses/students.
- If you currently have an active subscription or are purchasing multiple sets/cards, you will not be able to redeem a second code until your current subscription expires.
Publisher's Information
Publisher: Demme Learning
Series: Math-U-See
Age Recommendation: 9
Grade Recommendation: 4th
Faith-Based: No
Consumable: No (Instruction Pack, Integer Block Kit), Yes (Student Pack)
Copyright: 2012
Lessons: 30
CHOKING HAZARD - Small parts. Not for children under 3 years.
Table of Contents
review by Making Everyday Magic
”If you have a child who has been struggling with mastering addition, subtraction, multiplication, or division facts, this may be worth a try for you. ”
Read the ReviewFind answers to the most frequently asked questions about this product below:
Math-U-See has transitioned from lifetime access to a one-year subscription for its digital resources, including instructional videos and the online teacher manual.
This new subscription provides digital access for two levels and up to five students. Depending on your family’s needs, this may offer more flexibility than the previous level-by-level lifetime access model.
One of the strengths of this plan is its flexibility. Your students are not locked into a single level. If a student finishes a level early or needs to go back and review an earlier one, you can swap a course credit to a different level right from your dashboard, up to once every 30 days. Because the plan includes two credits, a family with two students in different levels can often cover both with one subscription. When a student is ready to move up, you simply purchase the physical materials for the next level and swap the credit. As long as your subscription is active, there is no new subscription to buy to keep going.
For more information, view our 1-Year Essential Plan Subscription Access page.
Math-U-See is a skills-based program that focuses on student mastery of a concept before progressing to the next concept. Because of this, it is not aligned with the common core and, therefore, may not meet the requirements of state standardized tests.
In other words, Math-U-See covers topics in a logical sequence, which may not exactly correlate with the more scattered assortment of skills that are typical for each grade. Parents who wish to compare the Common Core State Standards for kindergarten through sixth grade with the content taught in Math-U-See can do so here.
Most families find it more convenient for both children to have their own set of Integer Blocks. However, you can stick with one set to ease the budget if your students don't mind taking turns as needed.
Your subscription includes a PDF of the Instruction Manual, so every page from the physical book is there in digital form. Pick a lesson and you'll find the menu just below the lesson video: Lesson Instruction (the PDF of the lesson pages), Solutions (the PDF solutions to the Student Workbook), and other Resources. The virtual manipulatives are in the Digital Toolbox.
If you chose the Printed Instructor's Manual instead, those same pages are in your book.
- September 18, 2026
Krystal D.
We love Math-U-See and have been using it for years. My youngest got Delta this year. We like the mastery building upon approach. His videos are short, concise and explain the new skills well.
- August 31, 2026
Catherine
We love Math-U-See. It's been great. My only issues is the change that has taken away the lifetime digital access.
- April 17, 2026
KitMama
I still really love this curriculum. We’ve been using it for both kids since kindergarten. The videos are really helpful and my kids enjoy watching them. The instructor does a really good job explaining each concept clearly. The workbook is great because there are a few worksheets that focus on the new topic being learned, then a few worksheets that are a mix of review questions which help with retention. I highly recommend this curriculum!
- November 14, 2025
MUS
Jackie
This is our first time using Math U See and both of my children are doing great. They watch the video on Monday which explains well enough that i don't have to reteach the material. It's the one course that they grab first every morning.
- November 14, 2025
MUS
Jackie
This is our first time using Math U See and both of my children are doing great. They watch the video on Monday which explains well enough that i don't have to reteach the material. It's the one course that they grab first every morning.
- July 27, 2025
Great Math for my kids!
Hannah T.
I love the simplicity of watching the instruction video and being able to do as many worksheets as necessary for my children to master the concept.
- May 21, 2025
Engages all types of learners
Sadie
This math curriculum offers many different ways to learn. You can move blocks around for those hands-on learners, read the written equations, or follow along with the DVD instructor.
- April 27, 2025
No DVD or Instructors Manual
ScotFlower
I love Math-U-See for my son. But, when I bought the Delta level in April of 2025, it did not come with an instructor's manual hardback copy nor the lesson videos on DVD... as it had come with every single year until now. There was no clear warning about this change and no option to opt out of digital material. I am going to be honest here, in my busy life, I will never look at a digital instructors manual, so you should just refund me the money for it. But a book sitting in front of me will be read every single week while I monitor the students working on assignments. Now, as for the digital videos, I do not want my son on the internet or on my computer... so now my son has no access to watch his lessons each week and since we don't have a hard copy of an instructors manual, I cannot give him that to learn his lessons either. My son was perfectly capable of putting a DVD in the player and watching his lessons just fine. I want to continue to do that, so I found another website still had the DVDs available and I bought the next four levels. By high school I think my son will be mature enough to use the internet to watch lessons.
- April 9, 2025
Great Curriculum
Sheri
We love MUS and have used previous levels. It makes math easy and fun. The videos are short and to the point and the blocks appeal to our kinesthetic learner.
- February 19, 2025
really helpful
a
both my kids find his teaching helpful.
