
Area Model Multiplication
Review across 4.NBT.4-6: add 45,682 + 18,439, complete a 43 × 27 area model, divide 2,459 by 6, and split a 14-box book order across 5 shelves.
4.NBT computation: fluently adding and subtracting multi-digit whole numbers using the standard algorithm.

Review across 4.NBT.4-6: add 45,682 + 18,439, complete a 43 × 27 area model, divide 2,459 by 6, and split a 14-box book order across 5 shelves.

Four multi-step problems for 4.OA.3: vans for a 74-student field trip, a carrot-harvest estimate, Maya's $85 book fair trip, and 150 paint tubes split 6 ways.

Long division with one-digit divisors: 347 ÷ 4 up to 2,845 ÷ 7, cookie boxes with leftovers, a van count that rounds up, and a check on Marcus's work.

Match times-as-many statements to equations, read bar models of 5s, 6s and 7s, and sort multiplicative from additive claims. Ends with the 18-foot giraffe.

34 × 26 by area model, 3,425 × 6 in expanded form, six computations up to 86 × 19, and word problems on apple crates and $275 book sets. 4.NBT.5.

Place value to 748,391: the 10× rule inside 444,444, expanded form for 582,409, six comparisons, and rounding three numbers to three places each.
4.NBT.4
“Fluently add and subtract multi-digit whole numbers using the standard algorithm.”
4.NBT.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 value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.”
4.NBT.6
“Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.”
4.OA.3
“Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.”
4.OA.1
“Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 x 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations.”
4.OA.2
“Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison.”
4.NBT.1
“Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.”
4.NBT.2
“Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.”
4.NBT.3
“Use place value understanding to round multi-digit whole numbers to any place.”
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4.NF fractions: explaining why a fraction a/b is equivalent to (n x a)/(n x b) and recognizing equivalent fractions.

4.MD measurement: applying the area and perimeter formulas for rectangles in real-world and mathematical problems.

4.G geometry: drawing and identifying lines and angles and classifying shapes by properties of their lines and angles.

4.OA number work: finding all factor pairs for whole numbers from 1 to 100 and determining whether a number is prime or composite.