Unit Design Content Area Grade/Course Unit Title Duration of Unit Warren County Public Schools Mathematics 4th Grade Mathematics UNIT 4: Multiplication/Factors/Multiples 4 weeks 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 value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models. 4.OA.A.1 Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 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.A.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.OA.A.3 Solve multistep word problems posed with whole numbers and having wholenumber 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.B.4 Find all Factor pairs for a while number in the range 1-100. Recognize that a while number is a multiple of each of its factors. Determine whether a given while number in the range 1-100 is a multiple of a given one-digit number. Determine whether a given while number in the range 1-100 is prime or composite. 4.OA.C.5 Generate a number or shape pattern that follows a given rule. Identify apparent features of the pattern that were not explicit in the rule itself. For example, given the rule “Add 3” and the starting number 1, generate terms in the resulting sequence and observe that the terms appear to alternate between odd and even numbers. Explain informally why the numbers will continue to alternate in this way. Concepts (nouns) Skills (verbs) Whole numbers of up to four-digit numbers by a onedigit whole number Two two-digit numbers Interpret a multiplication equation as a comparison Multiply or divide to solve word problems Multiplication Strategies based on place value and the properties of operations Calculations by using equations, rectangular arrays, and/or area models Multiply Bloom’s Level (verb) Apply (3) Multiply Interpret Multiply/Divide Use (apply) Apply (3) Apply (3) Analysis (4) Apply (3) Illustrate & explain Understand (2) Unit Design Warren County Public Schools Multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted These problems using equations with a letter standing for the unknown quantity The reasonableness of answers using mental computation and estimation strategies including rounding Factor pairs for a whole number in the range 1-100 Whole number in the range 1-100 is a multiple of a given one-digit number Whole number (1-100) is prime or composite Solve Apply (3) Represent Assess Understand (2) Evaluate (5) Find Determine Apply (3) Apply (3) Determine Analysis (4) Learning Targets LT1. Multiple whole numbers of up to four-digit numbers by a one-digit whole number. (3) LT2. Multiply two two-digit numbers. (3) LT3. Represent verbal statements of multiplicative comparisons as multiplication equations. (3,4) LT4. Use multiplication strategies based on place value and the properties of operations. (3) LT5. Illustrate and explain calculations by using equations, rectangular arrays, and/or area models. (2,3,4) LT6. 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. (3,4,5) LT7. Represent these problems using equations with a letter standing for the unknown quantity. (2,3) LT8. Assess the reasonableness of answers using mental computation and estimation strategies including rounding. (2, 3, 5) LT9. Multiply to solve word problems using multiplicative comparison (drawings, equations with a symbol for the unknown). Determine Big Ideas (lifelong understandings) Multiplication helps me to add numbers faster. Write Essential Questions (Answer Big Idea, hook student interest. How many weeks will it take me to earn enough money to buy a bicycle that costs $70.00 if I save $5.00 each week? See Resources: http://teresaemmert.weebly.com/uploads/1/3/0/5/13053448/multidigit_multiplication_strategies_grade_4_revised_may_2012.pdf www.learnzillion.com https://www.georgiastandards.org/CommonCore/Common%20Core%20Frameworks/CCGPS_Math_4_Unit2Framework.pdf Unit Design Warren County Public Schools http://www.hudsonville.k12.mi.us/HPS/images/stories/Enrichment/4th%20&%205th%20 session.pdf www.thinkcentral.com (Math in Focus/Go Math) http://illuminations.nctm.org/Activity.aspx?id=3511 www.studyjams.scholastic.com www.brainpop.com (Password required) www.brainpopjr.com (Password required) www.multiplication.com www.ixl.com (Password required) https://grade4commoncoremath.wikispaces.hcpss.org/