Dream Box – Matching Number Pairs for Two Hundred.  Students practice computation strategies and identify number patterns and relationships to make two hundred in a variety of ways.  Lesson Dream Box – Addition with Tens on the Number Line.  Using an open number line, students jump by tens to decompose addition problems into friendly steps.  Lesson   …

## Interactive Number Equivalency (2nd & 3rd Grade)

Second Grade Dream Box – Build Expressions Equal to Twenty. Using expressions that have one to three addends, this tool engages students in understanding various number pairs that equal up to twenty.  Lesson Dream Box – Build Expressions Equal to One Hundred.  Using expressions that have one to three addends, this tool engages students in understanding equivalence of …

Dream Box – Addition on the Number Line Using Landmark Numbers.  Using an open number line, students leverage landmark numbers such as tens and hundreds to solve addition problems.  Lesson Dream Box – Subtraction on the Number Line Using Constant Difference.  Using an open number line, students explore a compensation strategy as a vehicle to create …

## Teaching 3.OA.A.3 – Multiplication & Division within 100 to Solve Word Problems in Situations Involving Equal groups, Arrays, & Measurement Quantities

Operations & Algebraic Thinking – 3rd Grade Represent and solve problems involving multiplication and division. CCSS.Math.Content.3.OA.A.3 Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem. Teacher Notes Drawings …

## Teaching RL4.1 Refer to Details and Examples in a Text

Reading Literature – 4th Grade Key Ideas and Details CCSS.ELA-Literacy.RL.4.1 Refer to details and examples in a text when explaining what the text says explicitly and when drawing inferences from the text. Teacher Notes Drawings and equations help us solve word problems in situations involving equal groups, arrays, and measurement quantities. Understanding the context and …

## Interactive Fractions and Decimals (4th Grade)

Dream Box – Equivalent Fractions on the Number Line.  Students develop understanding of equivalent fractions by placing markers at set intervals along a race course.  Lesson CCSS.MATH.CONTENT.4.NF.B.3.B Decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Justify decompositions, e.g., by using a …

## Interactive Multi-Digit Multiplication Area Model (4th Grade)

Dream Box – Multiplication: Open Arrays/Area Models.  Students compose arrays, use partial products, and develop understanding of the distributive property to mentally multiply up to 3-digit by 3-digit numbers.  Lesson CCSS.MATH.CONTENT.4.NBT.B.5 Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place …

## Interactive Subtraction Algorithm (4th Grade)

Dream Box – Subtraction Algorithm.  Students use the standard subtraction algorithm and a place value workspace to solve subtraction problems involving up to two 3-digit numbers.  Lesson CCSS.MATH.CONTENT.4.NBT.B.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm.

Dream Box – Adding Fractions.  Using both a concrete bar model and equations, this tool enables students to represent fraction addition and think strategically about which fractional pieces are best to solve a given problem. Lesson Dream Box – Subtracting Fractions.  Using the “removal” or “take away” representation, this tool helps your students learn to subtract …