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Eureka Math™ Homework Helper 2015–2016 Grade 1 Module 2

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Parent Guide to Gr. 1 Eureka Math

Read-Draw-Write Strategy (RDW)

Resources by unit.

Below is a brief description of the topics for each unit. Links to videos are provided to help you understand instructional strategies being taught in class.

  Module/Unit 1: Sums & Differences to 10

In this first module of Grade 1, students make significant progress towards fluency with addition and subtraction of numbers to 10 as they are presented with opportunities intended to advance them from counting all to counting on which leads many students then to decomposing and composing addends and total amounts. Students continue to use the Kindergarten strategy of number bonds to determine pairs of numbers that add to 10.

In the context of addition to 10, students expand their knowledge of two basic ideas of mathematics: equality and the commutativity of addition. Students also learn that the equal sign is a symbol of the equality of two values, rather than that an equation represents an expression on one side and an answer on the other side. This understanding is foundational in allowing students to later construct true number sentences such as 4 + 3 = 3 + 4 without misunderstanding the equal sign to mean that the numbers are the same. Students create sets of related addition and subtraction facts and use dialogue to explain their found connections (e.g., 7 = 4 + 3, 7 – 4 = 3, 4 + 3 = 3 + 4, 4 = 7 – 3, etc.) They will also work with story problems, which help them understand addition and subtraction in relation to real world situations.

Some of the video links below will take you to another school website, where the teachers have created short homework videos to help parents help their students. If you have questions on homework, refer to the number in the top right corner of the worksheet and then find the corresponding video link below.

Module 1 Lesson 1 Instruction Module 1 Lesson 2 Instruction Module 1 Lesson 3 Instruction   Module 1 Lesson 4 Instructi on Module 1 Lesson 5 Instruction   Module 1 Lesson 6 Instruction   Module 1 Lesson 7 Instruction   Module 1 Lesson 8 Instruction   Module 1 Lesson 9 Instruction   Module 1 Lesson 10 Instruction   Module 1 Lesson 11 Instruction   Module 1 Lesson 12 Instruction   Module 1 Lesson 13 Instruction   Module 1 Lesson 14 Instruction   Module 1 Lesson 15 Instruction   Module 1 Lesson 16 Instruction   Module 1 Lesson 17 Instruction   Module 1 Lesson 18 Instruction   Module 1 Lesson 19 Instruction   Module 1 Lesson 20 Instruction   Module 1 Lesson 21 Instruction   Module 1 Lesson 22 Instruction   Module 1 Lesson 22 Instruction   Module 1 Lesson 23 Instruction   Module 1 Lesson 24 Instruction   Module 1 Lesson 25 Instruction   Module 1 Lesson 26 Instruction   Module 1 Lesson 27 Instruction   Module 1 Lesson 28 Instruction  Module 1 Lesson 29 Instruction   Module 1 Lesson 30 Instruction   Module 1 Lesson 31 Instruction   Module 1 Lesson 32 Instruction   Module 1 Lesson 33 Instruction   Module 1 Lesson 34 Instruction   Module 1 Lesson 35 Instruction   Module 1 Lesson 36 Instruction   Module 1 Lesson 37 Instruction   Module 1 Lesson 38 Instruction   Module 1 Lesson 39 Instruction

Lesson 1 HW Help Lesson 2 HW Help Lesson 3 HW Help Lesson 4 & 5 HW Help Lesson 6 & 7 HW Help Lesson 8 HW Help Lesson 9 HW Help Lesson 10 HW Help Lesson 11 HW Help Lesson 12 HW Help Lesson 13 HW Help Lesson 14 & 15 HW Help Lesson 16 HW Help Lesson 17 & 18 HW Help Lesson 19 HW Help Lesson 20 HW Help Lesson 21 HW Help Lesson 22 HW Help Lesson 23 HW Help Lesson 24 HW Help Lesson 25 HW Help Lesson 26 & 27 HW Help Lesson 28 HW Help Lesson 29 HW Help Lesson 30 HW Help Lesson 31 HW Help Lesson 32 HW Help Lesson 33 HW Help Lesson 34 HW Help Lesson 35 HW Help Lesson 36 HW Help Lesson 37 HW Help Lesson 38 HW Help Lesson 39 HW Help

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Learn, Practice, Succeed

Learn, Practice, and Succeed from   Eureka Math™   offer teachers multiple ways to differentiate instruction, provide extra practice, and assess student learning. These versatile companions to   A Story of Units®   (Grades K–5) guide teachers in response to intervention (RTI), provide extra practice, and inform instruction.

Also available for Grades 6–8 . 

Learn, Practice, Succeed can be purchased all together or bundled in any configuration. Contact your account solutions manager for more information and pricing.  

The Learn book serves as a student’s in-class companion where they show their thinking, share what they know, and watch their knowledge build every day!

Application Problems:  Problem solving in a real-world context is a daily part of   Eureka Math , building student confidence and perseverance as students apply their knowledge in new and varied ways.

Problem Sets :  A carefully sequenced Problem Set provides an in-class opportunity for independent work, with multiple entry points for differentiation.

Exit Tickets:   These exercises check student understanding, providing the teacher with immediate, valuable evidence of the efficacy of that day’s instruction and informing next steps.

Templates:   Learn   includes templates for the pictures, reusable models, and data sets that students need for   Eureka Math   activities.

With   Practice , students build competence in newly acquired skills and reinforce previously learned skills in preparation for tomorrow’s lesson.   Together,   Learn   and   Practice   provide all the print materials a student uses for their core instruction.

Eureka Math  contains multiple daily opportunities to build fluency in   mathematics . Each is designed with the same notion—growing every student’s ability to use mathematics   with ease . Fluency experiences are generally fast-paced and energetic, celebrating improvement and focusing on recognizing patterns and connections within the material.

Eureka Math   fluency activities provide differentiated practice through a variety of formats—some are conducted orally, some use manipulatives, others use a personal whiteboard, or a handout and paper-and-pencil format.

Sprints:  Sprint fluency activities in  Eureka Math Practice  build speed and accuracy with already acquired skills. Used when students are nearing optimum proficiency, Sprints leverage tempo to build a low-stakes adrenaline boost that increases memory and recall. Their intentional design makes Sprints inherently differentiated – the problems build from simple to complex, with the first quadrant of problems being the simplest, and each subsequent quadrant adding complexity.

Eureka Math Succeed   enables students to work individually toward mastery.  Teachers and tutors can use  Succeed   books from prior grade levels as curriculum-consistent tools for filling gaps in foundational knowledge. Students will thrive and progress more quickly, as familiar models facilitate connections to their current, grade-level content.

Additional Problem Sets:  Ideal for Homework or extra practice, these additional problem sets align lesson-by-lesson with what is happening in the classroom. These problems are sequenced from simple-to-complex to naturally scaffold student practice. They align with   Eureka Math   and use the curriculum’s mathematical models and language, ensuring that students feel the connections and relevance to their daily instruction, whether they are working on foundational skills or getting extra practice on the current topic.

Homework Helpers:   Each problem set is accompanied by a Homework Helper, a set of worked examples that illustrate how similar problems are solved. The examples, viewed side by side with the homework, support students as they reinforce the day’s learning. Homework Helpers are also a great way to keep parents informed about math class.

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Grade 2 Eureka Math Module 7 Lessons 1 – 5

• Jeremy Sayers
• December 10, 2022
• 2nd Grade Eureka Math

2nd Grade Eureka Math - Module 7 Lessons 1 - 5 Topic A

Module 7 Lesson 1 – Objective

Sort and record data into a table using up to four categories; use category counts to solve word problems.

Standards: 2.MD.D.10

Module 7 Lesson 2 – Objective

Draw and label a picture graph to represent data with up to four categories.

Module 7 Lesson 3 – Objective

Draw and label a bar graph to represent data; relate the count scale to the number line.

Module 7 Lesson 4 – Objective

Draw a bar graph to represent a given data set.

Module 7 Lesson 5 – Objective

Solve word problems using data presented in a bar graph.

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Eureka Math Grade 3 Module 2 Lesson 17 Answer Key

Engage ny eureka math 3rd grade module 2 lesson 17 answer key, eureka math grade 3 module 2 lesson 17 sprint answer key.

Question 1. 21 ≈

Answer: 21 ≈ 20

Question 2. 31 ≈

Answer: 31≈30

Question 3. 41 ≈

Answer: 41≈40

Question 4. 81 ≈

Answer: 81≈80

Question 5. 59 ≈

Answer: 59≈60

Question 6. 49 ≈

Answer: 49≈50

Question 7. 39 ≈

Answer: 39≈40

Question 8. 19 ≈

Answer: 19≈20

Question 9. 36 ≈

Answer: 36≈40

Question 10. 34 ≈

Answer: 34≈30

Question 11. 56 ≈

Answer: 56≈60

Question 12. 54 ≈

Answer: 54≈50

Question 13. 77 ≈

Answer: 77≈80

Question 14. 73 ≈

Answer: 73≈70

Question 15. 68 ≈

Answer: 68≈70

Question 16. 62 ≈

Answer: 62≈60

Question 17. 25 ≈

Answer: 25≈30

Question 18. 35 ≈

Answer: 35≈40

Question 19. 45 ≈

Answer: 45≈50

Question 20. 75 ≈

Answer: 75≈80

Question 21. 85 ≈

Answer: 85≈90

Question 22. 15 ≈

Answer: 15≈20

Question 23. 79 ≈

Answer: 79≈80

Question 24. 89 ≈

Answer: 89≈90

Question 25. 99 ≈

Answer: 99≈100

Question 26. 109 ≈

Answer: 109≈110

Question 27. 119 ≈

Answer: 119≈120

Question 28. 149 ≈

Answer: 149≈150

Question 29. 311 ≈

Answer: 311≈310

Question 30. 411 ≈

Answer: 411≈410

Question 31. 519 ≈

Answer: 519≈520

Question 32. 619 ≈

Answer: 619≈620

Question 33. 629 ≈

Answer: 629≈630

Question 34. 639 ≈

Answer: 639≈640

Question 35. 669 ≈

Answer: 669≈670

Question 36. 969 ≈

Answer: 969≈970

Question 37. 979 ≈

Answer: 979≈980

Question 38. 989 ≈

Answer: 989≈990

Question 39. 999 ≈

Answer: 999≈1000

Question 40. 1,109 ≈

Answer: 1109≈1110

Question 41. 1,119 ≈

Answer: 1119≈1120

Question 42. 3,227 ≈

Answer: 3227≈3230

Question 43. 5,487 ≈

Answer: 5487≈5490

Question 44. 7,885 ≈

Answer: 7885≈7890

Question 1. 11 ≈

Answer: 11≈10

Question 2. 21 ≈

Answer: 21≈20

Question 3. 31 ≈

Question 4. 71 ≈

Answer: 71≈70

Question 5. 69 ≈

Answer: 69≈70

Question 6. 59 ≈

Question 7. 49 ≈

Question 9. 26 ≈

Answer: 26≈30

Question 10. 24 ≈

Answer: 24≈20

Question 11. 46 ≈

Answer: 46≈50

Question 12. 44 ≈

Answer: 44≈40

Question 13. 87 ≈

Answer: 87≈90

Question 14. 83 ≈

Answer: 83≈80

Question 15. 78 ≈

Answer: 78≈80

Question 16. 72 ≈

Answer: 72≈70

Question 17. 15 ≈

Question 18. 25 ≈

Question 19. 35 ≈

Question 22. 45 ≈

Question 28. 159 ≈

Answer: 159≈160

Question 29. 211 ≈

Answer: 211≈210

Question 30. 311 ≈

Question 31. 418 ≈

Answer: 418≈420

Question 32. 518 ≈

Answer: 518≈520

Question 33. 528 ≈

Answer: 528≈530

Question 34. 538 ≈

Answer:540 538≈

Question 35. 568 ≈

Answer: 568≈570

Question 36. 968 ≈

Answer: 968≈970

Question 37. 978 ≈

Answer: 978≈980

Question 38. 988 ≈

Answer: 988≈990

Question 39. 998 ≈

Answer: 998≈1000

Question 40. 1,108 ≈

Answer: 1108≈1110

Question 41. 1,118 ≈

Answer: 1118≈1120

Question 42. 2,337 ≈

Answer: 2337≈2340

Question 43. 4,578 ≈

Answer: 4578≈4580

Question 44. 8,785 ≈

Answer: 8785≈8790

Eureka Math Grade 3 Module 2 Lesson 17 Problem Set Answer Key

Question 2. Janet watched a movie that is 94 minutes long on Friday night. She watched a movie that is 151 minutes long on Saturday night. a. Decide how to round the minutes. Then, estimate the total minutes Janet watched movies on Friday and Saturday.

Answer: The total minutes Janet watched movies on Friday and Saturday is about 240minutes.

Explanation: 94 ≈ 90 151 ≈ 150 150+90=240minutes I decided to round the numbers to the nearest ten minutes and estimated that the total minutes Janet watched movies on Friday and Saturday is 240minutes.

b. How much time did Janet actually spend watching movies?

Answer: The time Janet actually spend watching movies is 245 minutes.

Explanation: The time Janet actually spend watching movies is 94 minutes on friday and 151 minutes on saturday. Add to find the total 94+151=245 The time Janet actually spend watching movies is 245 minutes.

c. Explain whether or not your estimated sum is close to the actual sum. Round in a different way, and see which estimate is closer.

Answer: Yes, the estimated sum is close to the real sum when we rounded of he numbers to the nearest tens.Actual sum is 240 and the real sum is 245. If we round of the numbers to nearest hundred the sum is not very close to the actual sum. 94 ≈ 100, 151 ≈ 200.

Question 3. Sadie, a bear at the zoo, weighs 182 kilograms. Her cub weighs 74 kilograms. a. Estimate the total weight of Sadie and her cub using whatever method you think best.

Answer: 250kilograms is the estimated total weight of Sadie and her cub

Explanation: Using rounding to nearest tens 182 ≈ 180 74 ≈ 70 180+70=250 250kilograms is the estimated total weight of Sadie and her cub

b. What is the actual weight of Sadie and her cub? Model the problem with a tape diagram.

Answer: 256kilograms is the actual weight of Sadie and her cub.

Eureka Math Grade 3 Module 2 Lesson 17 Exit Ticket Answer Key

Jesse practices the trumpet for a total of 165 minutes during the first week of school. He practices for 245 minutes during the second week. a. Estimate the total amount of time Jesse practices by rounding to the nearest 10 minutes.

Answer: 420 minutes is the total amount of time Jesse practices by rounding to the nearest 10 minutes.

Explanation: 165 ≈ 170 245 ≈ 250 170+250=420minutes The total amount of time Jesse practices by rounding to the nearest 10 minutes is 420minutes.

b. Estimate the total amount of time Jesse practices by rounding to the nearest 100 minutes.

Answer: 400minutes is the total amount of time Jesse practices by rounding to the nearest 100 minutes.

Explanation: 165 ≈ 200 245 ≈ 200 200+200=400minutes The total amount of time Jesse practices by rounding to the nearest 100 minutes is 240minutes.

c. Explain why the estimates are so close to each other.

Answer: When we rounded of the numbers to the nearest hundreds one number is rounded up to the next hundred and one is rounded down to the previous hundred which made it balanced.So , both the estimates are close to each other.

Eureka Math Grade 3 Module 2 Lesson 17 Homework Answer Key

Question 1. Cathy collects the following information about her dogs, Stella and Oliver.

Use the information in the charts to answer the questions below. a. Estimate the total weight of Stella and Oliver.

Answer: Weight of Stella and oliver are 32 and 7 kgs. 32  ≈   30 7  ≈   10 30+10=40kgs Estimated total weight of Stella and Oliver is 40kg

b. What is the actual total weight of Stella and Oliver?

Answer: Weight of Stella and oliver are 32 and 7 kgs 32+7=39kg 39kg is the actual total weight of Stella and Oliver.

c. Estimate the total amount of time Cathy spends giving her dogs a bath.

Answer: Bath time of Stella and Oliver are 36minutes and 25minutes. 36 ≈ 40 25 ≈ 30 40+30=70minutes The estimated total amount of time Cathy spends giving her dogs a bath is 70minutes.

d. What is the actual total time Cathy spends giving her dogs a bath?

Answer: Bath time of Stella and Oliver are 36minutes and 25minutes 36+25=61minutes The actual total time Cathy spends giving her dogs a bath is 61 minutes.

Answer: e. Explain how estimating helps you check the reasonableness of your answers.

Answer: We can use estimation to check for reasonableness with all numbers. When we use estimation, it won’t tell us whether we actually have the correct answer, but it will tell us if we’re close and our answer is probably right

Question 2. Dena reads for 361 minutes during Week 1 of her school’s two-week long Read-A-Thon. She reads for 212 minutes during Week 2 of the Read-A-Thon. a. Estimate the total amount of time Dena reads during the Read-A-Thon by rounding.

Answer: Dena reads for 361 minutes during Week 1,for 212 minutes during Week 2 Round of to tens. 361 ≈  360 212 ≈ 210 360+210=570minutes The estimated total amount of time Dena reads during the Read-A-Thon by rounding is 570minutes.

b. Estimate the total amount of time Dena reads during the Read-A-Thon by rounding in a different way.

Answer: Dena reads for 361 minutes during Week 1,for 212 minutes during Week 2 Round of to hundreds. 361 ≈ 400 212  ≈ 200 400+200=600minutes The estimated total amount of time Dena reads during the Read-A-Thon by rounding is 600 minutes.

c. Calculate the actual number of minutes that Dena reads during the Read-A-Thon. Which method of rounding was more precise? Why?

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