Illustrative Mathematics
Building toward fluency
Here is a great learning task that focuses on the development of areas in computational fluency including strategies in mental math. Young learners are guided through a list of addition expressions that help them visually understand the...
Illustrative Mathematics
Double Plus One
Practice doubling with a straightforward worksheet. Learners double plus one each number in the table, and then answer a series of hypothetical math equations.
Curated OER
Using Counting-on Strategy for Purchasing
Intended for learners with autism and developmental disabilities, this lesson uses the strategy of counting-on to enhance independent shopping skills. Learners will practice counting on to the next dollar value in order to purchase items...
Curated OER
Two-Digit Addition at the Zoo
Your second graders explore two digit addition with regrouping. They will investigate problem solving strategies within the context of a trip to the zoo. Multiple resources and assessments are provided.
Curated OER
An Easier Way to Count: Using Groups of 10
Students explore their counting skills. In this counting lesson, students group objects in sets of 10 to practice counting them. Students also practice graphing the sets of objects they count. This lesson incorporates the use a video...
Curated OER
Using Number lines in Addition and Subtraction
Adding and subtracting can be done by counting on or counting down a number line. This presentation provides a complete demonstration and examples of how one can use a number line to solve double-digit addition and subtraction problems....
Curated OER
Addition Number Chart
Number charts are a great way for learners to practice counting and observe number patterns. There are four charts here with missing numbers for scholars to fill out. Each contains some numbers filled in as reference. Challenge...
Curated OER
A Human Number Line: Student Worksheet
Kids are challenged to make a human number line. They line up, holding numbers from -10 to 10. They then add and subtract both positive and negative numbers, using themselves as the numbers on the number line. This is a great way to...
Curated OER
Multiplying by 10
Multiplying by 10 is simple, but do your scholars know the trick? They look at four examples; if you haven't learned this yet, see if they notice a pattern in these answers. They multiply 70 numbers by 10. Most are two-digit, but a few...
Inside Mathematics
Number Towers
Number towers use addition or multiplication to ensure each level is equal. While this is common in factoring, it is often not used with algebraic equations. Solving these six questions relies on problem solving skills and being able to...
Curated OER
Early Mental Math: Practice
Pupils start from a given number and count forward by 1s, 2s, and 10s. They "make ten" in 4 addition problems, and add or subtract 2 in the rest. Finally, they circle the odd numbers in a list from 1-14.
Curated OER
Two Digit Addition with Regrouping
Students explore the concept of "regrouping." In this 2-digit addition with regrouping lesson, students create visual representations of combinations that equal ten using a tens frame. Students use manipulatives to represent the tens...
Pedago Net
Math Games Using Dice and Cards to Promote Mental Strategies
Develop mental math skills using these fun partner games. Covering basic operations, each one offers differentiation options, extension ideas, and clear directions. Dice or cards is all you'll need to keep kids' attention as they...
Education Development Center
Geography of the Number Line
It's more than just numbers on a line, its an organizational, mental math machine to help learners understand the value of numbers. The tool is handy when introducing positive and negative integers to see their values and relationships....
Curated OER
Addition
In this addition activity, students enhance their simple addition skills using addition strategies to solve the two worksheets of addition problems.
Curated OER
Practicing Addition Strategies
In this math worksheet, students add the numbers 5 and 6 using two different methods. They first count up from six. Students say seven, eight, nine, ten, eleven to get to their answer. The second method is to use doubles. They think five...
Curated OER
Domain: Operations and Algebraic Thinking
Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...
Curated OER
Addition Word Problems to 20 Independent - Practice Worksheet
First-grade mathematicians are encouraged to draw pictures to help solve ten word problems. Each of the problems will require your young counters to employ counting on strategies. The resource can be used for independent practice or...
Curated OER
Two-Step Problems and Money Concepts
Elementary schoolers solve two-step equations and practice money concepts. They solve multi-step addition and subtraction contextual problems and apply money concepts to real life situations. Pupils use pictures and counters to help them...
Curated OER
Number and Operations: Webbing Our Way Through Numbers
Second graders explore estimation and place value. In this place value instructional activity, 2nd graders estimate and construct numbers while working with spider activities. Students use addition and subtraction to compare estimates....
Curated OER
Developing Strategies for Addition and Subtraction
Primary graders develop strategies to assist them with addition and subtraction. They discover number combinations and numerical facts which enable them to add and subtract more effectively. Students use these techniques to complete...
Curated OER
Addition: Number Bonds to 10
You have the answer and a variable, but something is missing! The class fills in the missing addend in 23 practice problems that all add up to 10. This is a great way to build number sense, pattern recognition, and automaticity.
Public Schools of North Carolina
Math Stars: A Problem-Solving Newsletter Grade 4
Fresh off the press, these math newsletters will challenge the problem solving skills of your young mathematicians. With an incredibly wide variety of questions covering the topics of arithmetic and geometry, these unique...
Mental Arithmetic
Number Bonds to 10
First graders solve the sums up to 10 using the mental math strategy of number bonding. Thirty different addition facts on the worksheet allow for plenty of practice.