1. What was he doing wrong that caused his answer to be off?
2. hey

This clip is associated with the following standards:

• CCSS.MATH.CONTENT.4.G.A.1

  Common Core State Standards
  Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parall...

• CCSS.MATH.CONTENT.4.G.A.2

  Common Core State Standards
  Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines...

• CCSS.MATH.CONTENT.4.G.A.3

  Common Core State Standards
  Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the ...

• CCSS.MATH.CONTENT.4.MD.A.1

  Common Core State Standards
  Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, ...

• CCSS.MATH.CONTENT.4.MD.A.2

  Common Core State Standards
  Use the four operations to solve word problems involving distances, intervals of time, liquid volume...

• CCSS.MATH.CONTENT.4.MD.A.3

  Common Core State Standards
  Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For ex...

• CCSS.MATH.CONTENT.4.MD.B.4

  Common Core State Standards
  Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8). Solve...

• CCSS.MATH.CONTENT.4.MD.C.5

  Common Core State Standards
  Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and ...

• CCSS.MATH.CONTENT.4.MD.C.5A

  Common Core State Standards
  An angle is measured with reference to a circle with its center at the common endpoint of the rays, ...

• CCSS.MATH.CONTENT.4.MD.C.5B

  Common Core State Standards
  An angle that turns through n one-degree angles is said to have an angle measure of n degrees.

• CCSS.MATH.CONTENT.4.MD.C.6

  Common Core State Standards
  Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.

• CCSS.MATH.CONTENT.4.MD.C.7

  Common Core State Standards
  Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the ang...

• CCSS.MATH.CONTENT.4.NBT.A.1

  Common Core State Standards
  Recognize that in a multi-digit whole number, a digit in one place represents ten times what it repr...

• CCSS.MATH.CONTENT.4.NBT.A.2

  Common Core State Standards
  Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. C...

• CCSS.MATH.CONTENT.4.NBT.A.3

  Common Core State Standards
  Use place value understanding to round multi-digit whole numbers to any place.

• CCSS.MATH.CONTENT.4.NBT.B.4

  Common Core State Standards
  Fluently add and subtract multi-digit whole numbers using the standard algorithm.

• CCSS.MATH.CONTENT.4.NBT.B.5

  Common Core State Standards
  Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit...

• CCSS.MATH.CONTENT.4.NBT.B.6

  Common Core State Standards
  Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, u...

• CCSS.MATH.CONTENT.4.NF.A.1

  Common Core State Standards
  Explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b) by using visual fraction mode...

• CCSS.MATH.CONTENT.4.NF.A.2

  Common Core State Standards
  Compare two fractions with different numerators and different denominators, e.g., by creating common...

• CCSS.MATH.CONTENT.4.NF.B.3

  Common Core State Standards
  Understand a fraction a/b with a > 1 as a sum of fractions 1/b.

• CCSS.MATH.CONTENT.4.NF.B.3A

  Common Core State Standards
  Understand addition and subtraction of fractions as joining and separating parts referring to the sa...

• CCSS.MATH.CONTENT.4.NF.B.3B

  Common Core State Standards
  Decompose a fraction into a sum of fractions with the same denominator in more than one way, recordi...

• CCSS.MATH.CONTENT.4.NF.B.3C

  Common Core State Standards
  Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an ...

• CCSS.MATH.CONTENT.4.NF.B.3D

  Common Core State Standards
  Solve word problems involving addition and subtraction of fractions referring to the same whole and ...

• CCSS.MATH.CONTENT.4.NF.B.4

  Common Core State Standards
  Apply and extend previous understandings of multiplication to multiply a fraction by a whole number.

• CCSS.MATH.CONTENT.4.NF.B.4A

  Common Core State Standards
  Understand a fraction a/b as a multiple of 1/b. For example, use a visual fraction model to represen...

• CCSS.MATH.CONTENT.4.NF.B.4B

  Common Core State Standards
  Understand a multiple of a/b as a multiple of 1/b, and use this understanding to multiply a fraction...

• CCSS.MATH.CONTENT.4.NF.B.4C

  Common Core State Standards
  Solve word problems involving multiplication of a fraction by a whole number, e.g., by using visual ...

• CCSS.MATH.CONTENT.4.NF.C.5

  Common Core State Standards
  Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this ...

• CCSS.MATH.CONTENT.4.NF.C.6

  Common Core State Standards
  Use decimal notation for fractions with denominators 10 or 100. For example, rewrite 0.62 as 62/100;...

• CCSS.MATH.CONTENT.4.NF.C.7

  Common Core State Standards
  Compare two decimals to hundredths by reasoning about their size. Recognize that comparisons are val...

• CCSS.MATH.CONTENT.4.OA.A.1

  Common Core State Standards
  Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that ...

• CCSS.MATH.CONTENT.4.OA.A.2

  Common Core State Standards
  Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawin...

• CCSS.MATH.CONTENT.4.OA.A.3

  Common Core State Standards
  Solve multistep word problems posed with whole numbers and having whole-number answers using the fou...

• CCSS.MATH.CONTENT.4.OA.B.4

  Common Core State Standards
  Find all factor pairs for a whole number in the range 1–100. Recognize that a whole number is a mult...

• CCSS.MATH.CONTENT.4.OA.C.5

  Common Core State Standards
  Generate a number or shape pattern that follows a given rule. Identify apparent features of the patt...

• CCSS.MATH.CONTENT.5.G.A.1

  Common Core State Standards
  Use a pair of perpendicular number lines, called axes, to define a coordinate system, with the inter...

• CCSS.MATH.CONTENT.5.G.A.2

  Common Core State Standards
  Represent real world and mathematical problems by graphing points in the first quadrant of the coord...

• CCSS.MATH.CONTENT.5.G.B.3

  Common Core State Standards
  Understand that attributes belonging to a category of two-dimensional figures also belong to all sub...

• CCSS.MATH.CONTENT.5.G.B.4

  Common Core State Standards
  Classify two-dimensional figures in a hierarchy based on properties.

• CCSS.MATH.CONTENT.5.MD.A.1

  Common Core State Standards
  Convert among different-sized standard measurement units within a given measurement system (e.g., co...

• CCSS.MATH.CONTENT.5.MD.B.2

  Common Core State Standards
  Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8). Use o...

• CCSS.MATH.CONTENT.5.MD.C.3A

  Common Core State Standards
  A cube with side length 1 unit, called a “unit cube,” is said to have “one cubic unit” of volume, an...

• CCSS.MATH.CONTENT.5.MD.C.3B

  Common Core State Standards
  A solid figure which can be packed without gaps or overlaps using n unit cubes is said to have a vol...

• CCSS.MATH.CONTENT.5.MD.C.4

  Common Core State Standards
  Measure volumes by counting unit cubes, using cubic cm, cubic in, cubic ft, and improvised units.

• CCSS.MATH.CONTENT.5.MD.C.5

  Common Core State Standards
  Relate volume to the operations of multiplication and addition and solve real world and mathematical...

• CCSS.MATH.CONTENT.5.MD.C.5A

  Common Core State Standards
  Find the volume of a right rectangular prism with whole-number side lengths by packing it with unit ...

• CCSS.MATH.CONTENT.5.MD.C.5B

  Common Core State Standards
  Apply the formulas V = l × w × h and V = b × h for rectangular prisms to find volumes of right recta...

• CCSS.MATH.CONTENT.5.MD.C.5C

  Common Core State Standards
  Recognize volume as additive. Find volumes of solid figures composed of two non-overlapping right re...

• CCSS.MATH.CONTENT.5.NBT.A.1

  Common Core State Standards
  Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it repre...

• CCSS.MATH.CONTENT.5.NBT.A.2

  Common Core State Standards
  Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, an...

• CCSS.MATH.CONTENT.5.NBT.A.3

  Common Core State Standards
  Read, write, and compare decimals to thousandths.

• CCSS.MATH.CONTENT.5.NBT.A.3A

  Common Core State Standards
  Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g...

• CCSS.MATH.CONTENT.5.NBT.A.3B

  Common Core State Standards
  Compare two decimals to thousandths based on meanings of the digits in each place, using >, =, an...

• CCSS.MATH.CONTENT.5.NBT.A.4

  Common Core State Standards
  Use place value understanding to round decimals to any place.

• CCSS.MATH.CONTENT.5.NBT.B.5

  Common Core State Standards
  Fluently multiply multi-digit whole numbers using the standard algorithm.

• CCSS.MATH.CONTENT.5.NBT.B.6

  Common Core State Standards
  Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors,...

• CCSS.MATH.CONTENT.5.NBT.B.7

  Common Core State Standards
  Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and st...

• CCSS.MATH.CONTENT.5.NF.A.1

  Common Core State Standards
  Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fra...

• CCSS.MATH.CONTENT.5.NF.A.2

  Common Core State Standards
  Solve word problems involving addition and subtraction of fractions referring to the same whole, inc...

• CCSS.MATH.CONTENT.5.NF.B.3

  Common Core State Standards
  Interpret a fraction as division of the numerator by the denominator (a/b = a ÷ b). Solve word probl...

• CCSS.MATH.CONTENT.5.NF.B.4

  Common Core State Standards
  Apply and extend previous understandings of multiplication to multiply a fraction or whole number by...

• CCSS.MATH.CONTENT.5.NF.B.4A

  Common Core State Standards
  Interpret the product (a/b) × q as a parts of a partition of q into b equal parts; equivalently, as ...

• CCSS.MATH.CONTENT.5.NF.B.4B

  Common Core State Standards
  Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appr...

• CCSS.MATH.CONTENT.5.NF.B.5

  Common Core State Standards
  Interpret multiplication as scaling (resizing), by:

• CCSS.MATH.CONTENT.5.NF.B.5A

  Common Core State Standards
  Comparing the size of a product to the size of one factor on the basis of the size of the other fact...

• CCSS.MATH.CONTENT.5.NF.B.5B

  Common Core State Standards
  Explaining why multiplying a given number by a fraction greater than 1 results in a product greater ...

• CCSS.MATH.CONTENT.5.NF.B.6

  Common Core State Standards
  Solve real world problems involving multiplication of fractions and mixed numbers, e.g., by using vi...

• CCSS.MATH.CONTENT.5.NF.B.7

  Common Core State Standards
  Apply and extend previous understandings of division to divide unit fractions by whole numbers and w...

• CCSS.MATH.CONTENT.5.NF.B.7A

  Common Core State Standards
  Interpret division of a unit fraction by a non-zero whole number, and compute such quotients. For ex...

• CCSS.MATH.CONTENT.5.NF.B.7B

  Common Core State Standards
  Interpret division of a whole number by a unit fraction, and compute such quotients. For example, cr...

• CCSS.MATH.CONTENT.5.NF.B.7C

  Common Core State Standards
  Solve real world problems involving division of unit fractions by non-zero whole numbers and divisio...

• CCSS.MATH.CONTENT.5.OA.A.1

  Common Core State Standards
  Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these s...

• CCSS.MATH.CONTENT.5.OA.A.2

  Common Core State Standards
  Write simple expressions that record calculations with numbers, and interpret numerical expressions ...

• CCSS.MATH.CONTENT.5.OA.B.3

  Common Core State Standards
  Generate two numerical patterns using two given rules. Identify apparent relationships between corre...