In this 25-day module, students work with two- and three-dimensional figures.  Volume is introduced to students through concrete exploration of cubic units and culminates with the development of the volume formula for right rectangular prisms.  The second half of the module turns to extending students’ understanding of two-dimensional figures.  Students combine prior knowledge of area with newly acquired knowledge of fraction multiplication to determine the area of rectangular figures with fractional side lengths.  They then engage in hands-on construction of two-dimensional shapes, developing a foundation for classifying the shapes by reasoning about their attributes.  This module fills a gap between Grade 4’s work with two-dimensional figures and Grade 6’s work with volume and area.

Find the rest of the EngageNY Mathematics resources at https://archive.org/details/engageny-mathematics.

Module 4 marks the next exciting step in math for kindergartners, addition and subtraction! They begin to harness their practiced counting abilities, knowledge of the value of numbers, and work with embedded numbers to reason about and solve addition and subtraction expressions and equations. In Topics A and B, decomposition and composition are taught simultaneously using the number bond model so that students begin to understand the relationship between parts and wholes before moving into formal work with addition and subtraction in the rest of the module.

Find the rest of the EngageNY Mathematics resources at https://archive.org/details/engageny-mathematics.

This short video and interactive assessment activity is designed to teach second graders an overview of subtraction (numbers to 100) - word problems.

This short video and interactive assessment activity is designed to teach first graders about selecting the correct addition sentence (sums to 100).

This short video and interactive assessment activity is designed to teach second graders about selecting the correct addition sentence (sums to 100).

This short video and interactive assessment activity is designed to teach second graders an overview of addition (sums to 20).

This site features a video overview of Addition (Sums to Twenty) for 1st Graders.

This short video and interactive assessment activity is designed to teach second graders about subtraction: selecting the correct sentence.

This short video and interactive assessment activity is designed to teach second graders about fluency in subtraction (numbers up to 20).

This short video and interactive assessment activity is designed to teach second graders about selecting the correct subtraction sentence.

This short video and interactive assessment activity is designed to teach second graders about addition: selecting the correct sentence.

This short video and interactive assessment activity is designed to teach second graders about selecting the incorrect subtraction sentence (numbers up to 20).

This course features a video review and an interactive assessment activity for selecting the correct addition sequence. It is aimed at first graders.

This short video and interactive assessment activity is designed to teach second graders about selecting the correct addition sentence.

Dominoes have become a staple in most primary classrooms. They build upon dice patterns and are often used to model decomposition of numbers, building student knowledge of addition facts. They are an excellent manipulative for primary students to use and these are some examples of how students might use dominoes in the math center. Try these domino games with students to improve math skills and number recognition. Encourage students to play these games at home with their families, using real dominoes or paper copies.

The purpose of this task is to help students articulate their addition strategies and would be most appropriately used once students have a solid understanding of coin values.

The purpose of this task is for students to find different pairs of numbers that sum to 9.

This task requires students to study the make-a-ten strategy that they should already know and use intuitively. In this strategy, knowledge of which sums make a ten, together with some of the properties of addition and subtraction, are used to evaluate sums which are larger than 10.

Making a 10 provides a technique to help students master single digit addition. The task is designed to help students visualize where the 10's are on a single digit addition table and explain why this is so. This knowledge can then be used to help them learn the addition table.