This short video and interactive assessment activity is designed to teach fourth graders about addition: completing the addition sentence.

The purpose of this task is to study some patterns in a small addition table. Each pattern identified persists for a larger table and if more time is available for this activity students should be encouraged to explore these patterns in larger tables.

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

The lesson is to be used to review the six addition strategies the first grade class has already learned. The strategies are: Add Zero Facts, Count On Facts, Make 10 Facts, Doubles Facts, Add 10 Facts, and Add 9 Facts. It also touches on the equal sign.

Objectives: Students will be able to comprehend the steps necessary to solve addition problems in 3 different ways (logical, physical, visual).  Students will be completing a worksheet activity in groups of 4-5. Students should complete this assignment by the end of class. 

This is a lesson for teaching 1st graders on how to use a number line to help them with number sense and understanding addition before they learn subtraction. Number lines can also aid in the concept of subraction. 

This is a lesson for teaching 1st graders on how to use a number line to help them with number sense and understanding addition before they learn subtraction. Number lines can also aid in the concept of subraction. 

An annotated list of resources of different types to support Spanish-language speakers in learning more about Creative Commons.

The resources provided gives additional insight into the world of playwriting. There is a guide to playwriting as well as commentary from real people in the field.

Additional materials for custom math teaching. Exercises for different skill levels. Πρόσθετο υλικό για προσαρμοσμένη διδασκαλία μαθηματικών. Ασκήσεις για διαφορετικά επίπεδα δεξιοτήτων.

Students place markers on the numbers 2-12. Students toss two 6-sided dice, find the sum and remove a marker from that number, if there is still one. The first player to remove all markers wins the game. This game can be used as addition practice or as an introduction to the probability of the different outcomes of rolling two dice. This game was developed by a Monmouth University student for the Probability Fair. These games help students acquire proficiency in addition and subtraction facts.

This short video and interactive assessment activity is designed to teach fourth graders about one step metric capacity with addition and subtraction - word problems.

This short video and interactive assessment activity is designed to teach third graders about one step addition and subtraction - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about addition in kilograms.

This short video and interactive assessment activity is designed to teach fourth graders about addition of capacities - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about addition of compound unit capacities - word problems.