In this ordering task each number has at most 3 digits so that students have the opportunity to think about how digit placement affects the size of the number.

The point of this task is to emphasize the grouping structure of the base-ten number system, and in particular the crucial fact that 10 tens make 1 hundred.

This short video and interactive assessment activity is designed to teach third graders about place value problems involving money.

This short video and interactive assessment activity is designed to teach second graders about representing numbers in expanded form i.

This short video and interactive assessment activity is designed to teach second graders about representing numbers in expanded form II.

This short video and interactive assessment activity is designed to teach third graders about identifying the value of digits based on place value.

This short video and interactive assessment activity is designed to teach fourth graders about identifyinging the value of digits based on place value.

This short video and interactive assessment activity is designed to teach fourth graders about recognizing place value of digits in numbers ii.

This task serves as a bridge between understanding place-value and using strategies based on place-value structure for addition.

This short video and interactive assessment activity is designed to teach fourth graders about representing numbers in expanded form i.

Same But Different is a powerful routine for use in math classrooms. The activity of same but different is an activity where two things are compared, calling attention to both how they are the same and how they are different.

This apparent paradox is the beauty of the activity. It is important to notice the word BUT. Instead of making a choice – am I going to prove that these are the same or am I going to prove that they are different – students are considering how two items can be both. This is a critically important distinction.

Not same OR different, rather same BUT different.

There are categories for addition/subtraction, early numeracy, multiplication/division, measurement, place value, fractions, ratios, geometry, algebra, and high school math.

Same or Different? is a routine that provides students opportunities to construct arguments when comparing objects, such as numbers or shapes.

A routine like Same or Different? provides accessible opportunities for even youngest students to learn how to talk about various features of mathematical objects – quantity, shape, color, orientation, and arrangement, to name a few.

The main areas of focus in the second grade math curriculum are: understanding the base-ten system within 1,000, including place value and skip-counting in fives, tens, and hundreds; developing fluency with addition and subtraction, including solving word problems; regrouping in addition and subtraction; describing and analyzing shapes; using and understanding standard units of measure; working with money and time; and introducing multiplication.

The worksheets and printables for second grade math available on this page will enhance any classroom's math curriculum. These engaging second grade math worksheets cover the basics of counting and ordering as well as addition and subtraction, and include exciting introductions to geometry and algebra for future self-assurance in math.

This is a series of three webpages about how humans and computers communicate. Learners will explore the binary and hexidecimal systems and how engineers use them to translate spacecraft data into images.

Third-grade math instruction is focused on the following areas: developing an understanding of multiplication and division and strategies for multiplication and division within 100; developing an understanding of fractions, especially unit fractions (fractions with numerator 1); developing an understanding of the structure of rectangular arrays and of area; describing and analyzing two-dimensional shapes.

The best way to ensure your students fully grasp the math concepts they'll need to successfully progress in their education is to practice as much as possible. The worksheets, puzzles, games, and other resources available here are the perfect solution for parents and teachers who want to provide their third graders with the tools they need to understand and excel in third-grade math.

The purpose of this task is to help students understand composing and decomposing ones, tens, and hundreds. This task is meant to be used in an instructional setting and would only be appropriate to use if students actually have base-ten blocks on hand.

This short video and interactive assessment activity is designed to teach fourth graders about number riddles (numbers up to 100,000).

This short video and interactive assessment activity is designed to teach third graders about turning words into numbers using place value models.

This short video and interactive assessment activity is designed to teach fourth graders about place value problems involving money.