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 …

## Interactive Division within 10,000 with Remainders (5th Grade)

Dream Box – Division within 10,000 with Remainders.  Students choose friendly equations (partial quotients) and the distributive property to solve multi-digit division problems within 10,000 and interpret remainders.  Lesson CCSS.MATH.CONTENT.5.NBT.B.6 Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or …

## Interactive Multiplication of Fractions (5th Grade)

Dream Box – Fraction Multiplication.  Students multiply two fractions together and use an area model to represent the product.  Lesson   CCSS.MATH.CONTENT.5.NF.B.4 Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.

## Interactive Decimal Sums on the Number Line (5th Grade)

Dream Box – Decimal Sums on the Number Line.  Students use a number line to add and subtract decimals and solve for a variable in a “change unknown” situation. Lesson   CCSS.MATH.CONTENT.5.NBT.B.7 Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the …

Dream Box – Coordinate Grids: Location and Measurement.  Students define and use a Cartesian coordinate grid to locate points and measure distances between points.  Lesson Dream Box – Coordinate Grids: Lines of Reflection.  Students reflect points on a coordinate grid over a line of reflection. Lesson   CCSS.MATH.CONTENT.6.G.A.3 Draw polygons in the coordinate plane given coordinates for …

## Interactive Ratios and Equivalent Measurements (6th Grade)

Dream Box – Ratios and Equivalent Measurements.  Students use a ratio table to represent equivalent measurement ratios in the context of a recipe. This DreamBox lesson helps students mentally multiply and divide as they use scale factors and number relationships to understand equivalent ratios.  Lesson Dream Box – Proportional Reasoning on a Double Number Line.  Students …

## Interactive Supplementary and Vertical Angles (7th Grade Geometry)

Dream Box – Supplementary and Vertical Angles. Students reason deductively about supplementary, vertical, and adjacent angles to make rotations, aim for targets, and determine angle measurements.  Lesson   CCSS.MATH.CONTENT.7.G.B.5 Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.

## Division – Double-Digit Divisors and Decimals (5th) Grade

Division of Decimals – Professional Development Video for fifth grade teachers. A couple good ways to teach Common Core Math. Double-Digit Division – Partial Quotient Exploring Division of Decimals CCSS.MATH.CONTENT.5.NBT.B.6 Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship …

## Mental Math Strategies

These printable mental math strategies or similar ones should be embedded throughout the math year and are excellent to promote during Number Talks. Addition and Subtraction Strategies Multiplication and Division Strategies