A growing database of additional resources

4th grade

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Alcumus: The Art of Problem Solving


Alcumus is specifically designed to provide high-performing students with a challenging curriculum appropriate to their abilities. 

Many of the problems are from major national math competitions such as MATHCOUNTS, MOEMS, the American Mathematics Competitions, and the Centre for Education in Mathematics and Computing competitions. 

As the student gets stronger, Alcumus automatically provides more challenging material, and conversely, if the student is having difficulty with a particular topic, Alcumus provides additional practice.


Array Model of Multiplication


array model

This is a great blog entry showing how to explain (and use) the array model of the multiplication facts. 

Carroll County Public Schools


Find your grade level on the left. Then click on the topic you want to teach. Browse through the numerous cool resources they have found for you!

DreamBox virtual manipulatives


You don't need to buy DreamBox to use their virtual manipulatives. These virtual manipulatives can be used in large- or small-group instructional settings with your interactive white board or projector, or on computers.


EngageNY Washington State Math Users Group

WA EngageNY

A community of educators committed to improving math instruction and assessment to help students meet the Common Core Challenge through the use of EngageNY/Eureka Math.


Enrichment for 3rd and 4th grade

Are you a 3rd or 4th grade teacher needing to enrich your curriculum? Need a little something extra to bring a particular standard to life? Try something from this list...


Fact Monster

fact monster

Students practice their fact fluency for addition, subtraction, multiplication, and division using this online webtool.


Fluency WITHOUT timed tests

fluency covers

A thought provoking idea: Using games to build conceptual understanding and mathematical fluency.


Front Row - differentiated math instruction



Common Core-aligned online math practice for K-8. This is not aligned specifically to Eureka Math, but it is aligned to CCSS.



Lost of simple online math games for TK - 5.


Howard County Resources

Illustrative Mathematics


Resources arranged under the Standards for Mathematical Content. Great math problems to use with your students.


Inside Mathematics


These Problems of the Month are organized  by grade level and main topic for that level. These grade‐level expectations are just estimates and should not be used as an absolute minimum expectation or maximum limitation for students. The structure of a Problem of the Month is a low floor and a high ceiling, so that all students can productively engage, struggle, and persevere.


K-5 Math Teaching Resources


This site provides several engaging sample lessons for each standard at each grade level from K to 5.


Math Fact Cafe

math fact cafe

Math Fact Cafe is a website that generates free math worksheets. This includes math fact worksheets, flashcards, counting, time, and money problems.


Math Playground


This website has it all: number games, flash cards, virtual math manipulatives, The best part of this site are...






Matific takes a unique approach to teaching K to 6 math using hands-on and interactive mini-games, called episodes. These immersive bite-sized apps for tablets and personal computers are based on a modular and progressive spiral learning system.

Multiple Multiplication



This is a description of four different ways to multiply two numbers. Each of the four methods can be used for whole numbers, fractions, decimals, and algebraic expressions. These methods are much more powerful than the "traditional" algorithm.

Multiplication Fact Fluency



Challenging math problems worth solving! 

"Open middle” problems have these characteristics:

  • they have a “closed beginning” meaning that they all start with the same initial problem.
  • they have a “closed end” meaning that they all end with the same answer.
  • they have an “open middle” meaning that there are multiple ways to approach and ultimately solve the problem.


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